Global Leading Market Research Publisher QYResearch announces the release of its latest report “VPH (Volume Phase Holographic) Grating – Global Market Share and Ranking, Overall Sales and Demand Forecast 2026-2032″. Based on current situation and impact historical analysis (2021-2025) and forecast calculations (2026-2032), this report provides a comprehensive analysis of the global VPH (Volume Phase Holographic) Grating market, including market size, share, demand, industry development status, and forecasts for the next few years.
For optical system designers, spectroscopy equipment manufacturers, and research institutions, the challenge of achieving high diffraction efficiency with low scatter across targeted wavelength ranges has historically required trade-offs between performance and cost. Traditional surface-relief gratings (ruled or holographic on the surface) suffer from limited efficiency, higher scatter, and wavelength sensitivity. VPH (Volume Phase Holographic) gratings address these limitations as optical elements in which the diffractive structure is recorded as a modulation of refractive index inside a photosensitive material rather than on its surface. Light passing through the volume interacts with these internal index variations, enabling high diffraction efficiency (typically 85-98%), low scatter (reducing stray light), and precise spectral control. VPH gratings deliver strong performance across tailored wavelength ranges (UV to near-infrared, 200-2000 nm) with structural stability, making them suitable for demanding optical and photonic applications including spectroscopy, hyperspectral imaging, laser systems, and optical coherence tomography (OCT). For instrument manufacturers facing increasing demands for higher signal-to-noise ratio, spectral resolution, and system compactness, VPH gratings offer a differentiated performance advantage.
The global market for VPH (Volume Phase Holographic) Grating was estimated to be worth USD 130 million in 2024 and is forecast to reach a readjusted size of USD 178 million by 2031, growing at a CAGR of 4.7% during the forecast period 2025-2031. The unit price of VPH gratings ranges between USD 300 and USD 1,000, depending on size, wavelength range, efficiency specifications, and customization. Industry gross margin is between 30% and 50%, reflecting the specialized manufacturing process and technical expertise required.
【Get a free sample PDF of this report (Including Full TOC, List of Tables & Figures, Chart)】
https://www.qyresearch.com/reports/5490416/vph–volume-phase-holographic–grating
1. Product Definition and Core Technology Types
A VPH (Volume Phase Holographic) grating is an optical element in which the diffractive structure is recorded as a modulation of refractive index inside a photosensitive material (typically dichromated gelatin or photopolymer) rather than on its surface. Unlike surface-relief gratings that rely on physical grooves, VPH gratings operate through volume index modulation. Light passing through the volume interacts with these internal index variations, enabling high diffraction efficiency, low scatter, and precise spectral control.
Core Technical Advantages: VPH gratings offer high diffraction efficiency (85-98% in peak efficiency, 65-85% across broad spectral bands vs. 50-70% for surface-relief equivalents). Low scatter (volume index modulation produces less stray light than surface grooves, improving signal-to-noise ratio in spectroscopy and imaging systems) is critical for low-light applications (astronomy, fluorescence spectroscopy). Polarization insensitivity (VPH gratings exhibit minimal polarization-dependent loss compared to surface-relief gratings) benefits applications requiring unpolarized light handling. Design flexibility (wavelength range, diffraction angle, efficiency profile can be tailored during recording) enables customer-specific optimization.
Segmentation by Operating Mode:
Transmission VPH Gratings (approximately 60-65% of market value): Light passes through the grating volume, with diffracted orders emerging on the opposite side. Transmission gratings are preferred for spectroscopy (spectrometers, monochromators), hyperspectral imaging (pushbroom and snapshot systems), and OCT (optical coherence tomography) where compact optical layouts and high efficiency across broad bandwidths are required.
Reflection VPH Gratings (approximately 35-40% of market value): Light diffracts back from the grating volume. Reflection gratings are used in pulse laser systems (ultrafast lasers requiring dispersion control), astronomy (high-resolution spectrographs), and telecommunications (wavelength demultiplexing). Reflection configuration provides higher angular dispersion for a given spatial frequency.
Segmentation by Application:
Optical Communication (approximately 25-30% of market value): Wavelength division multiplexing (WDM) components, optical spectrum analyzers, and network monitoring equipment. VPH gratings provide high channel isolation and low insertion loss for dense wavelength division multiplexing (DWDM) systems.
Optical Coherence Tomography (OCT) (approximately 15-20% of market value, fastest-growing segment): Medical imaging (ophthalmology, cardiology, dermatology) requiring high-speed, high-resolution spectral-domain OCT. VPH gratings enable broadband operation (800-1400 nm), high efficiency (>85%), and compact spectrometer design.
Pulse Laser Systems (approximately 20-25% of market value): Ultrafast lasers (femtosecond, picosecond), chirped pulse amplification (CPA) systems, and laser pulse compressors. VPH gratings provide dispersion control (negative group delay dispersion) and high damage threshold.
Others (approximately 30-35% of market value): Astronomy (high-resolution spectrographs), environmental monitoring (air quality, water quality spectrometers), semiconductor inspection (wafer defect detection), Raman spectroscopy, fluorescence spectroscopy, and hyperspectral imaging.
2. Market Size Trajectory and Key Growth Drivers
The VPH grating market, as tracked by QYResearch, shows steady growth from USD 130 million in 2024 to USD 178 million by 2031, representing a 4.7% CAGR.
Driver 1: Increasing Demand for High-Efficiency Optical Components in Spectroscopy: Spectroscopy applications (Raman, fluorescence, near-infrared, ultraviolet-visible) require high diffraction efficiency and low stray light to maximize signal-to-noise ratio (SNR) and detect low-concentration analytes. VPH gratings provide 15-30% higher efficiency than surface-relief gratings, directly improving SNR. Spectroscopy market growth (5-6% CAGR) driven by pharmaceutical QC, food safety testing, environmental monitoring, and materials science directly benefits VPH grating demand.
Driver 2: Expanding Adoption in Semiconductor Inspection: Semiconductor manufacturing (wafer inspection, metrology, overlay control) requires advanced optical systems with high resolution, high throughput, and low stray light. VPH gratings enable compact, high-efficiency spectrometers for wafer inspection tools. Semiconductor capital equipment market growth (6-8% CAGR) supports VPH grating adoption.
Driver 3: Growth in Medical OCT Systems: OCT market (ophthalmology, cardiology, gastroenterology, dermatology) is growing at 8-10% CAGR. Spectral-domain OCT (SD-OCT) and swept-source OCT (SS-OCT) utilize VPH gratings for high-speed, high-resolution imaging. VPH gratings provide broad bandwidth operation (800 nm for retinal imaging, 1300 nm for cardiology) with high efficiency.
Driver 4: Demand for Customization and Differentiation: End users (instrument manufacturers) seek performance differentiation through custom VPH grating designs (specific wavelength ranges, efficiency profiles, polarization handling, temperature stability). Manufacturers offering customization services (as opposed to standard catalog gratings) command premium pricing (20-50% higher) and build long-term customer relationships.
Exclusive Observation – Spectrometer Miniaturization Trend: Instrument manufacturers are developing compact, portable spectrometers for field applications (handheld Raman, drone-mounted hyperspectral, point-of-care diagnostics). Compact spectrometer design often requires custom VPH gratings with specific size, wavelength range, and efficiency tailored to the instrument’s optical layout. This trend increases demand for custom VPH gratings over standard catalog products. The market research indicates that custom VPH gratings will grow at 6-7% CAGR (vs. 3-4% for standard gratings), reaching 50-60% of market value by 2030.
3. Industry Development Characteristics and Competitive Landscape
As a senior industry analyst, I observe several defining characteristics that differentiate the VPH grating market.
Characteristic 1 – Concentrated Market with Niche Specialists: The VPH grating market is moderately concentrated, with the top 5 players (HORIBA, Newport Corporation (MKS Instruments), Edmund Optics, Zeiss, Shimadzu) holding approximately 45-50% of global market share. Other significant players include Dynasil Corporation, Kaiser Optical Systems, Headwall Photonics, Spectrogon AB, Spectrum Scientific, Thorlabs, Photop Technologies, GratingWorks, Shenyang Yibeite Optics, and Wasatch Photonics. Many of these players are specialized optical component manufacturers serving specific application niches (Wasatch Photonics focuses on OCT and spectroscopy; Headwall Photonics on hyperspectral imaging; Kaiser Optical Systems on Raman spectroscopy).
Characteristic 2 – Technical Expertise and Manufacturing as Barriers: VPH grating manufacturing requires expertise in holography (laser interference pattern recording), photosensitive material formulation (dichromated gelatin, photopolymer chemistry), exposure and processing (temperature, humidity, chemical development), optical coating (anti-reflection, protective layers), and quality testing (diffraction efficiency, wavefront error, scatter, polarization). Development of new VPH grating designs (wavelength range, efficiency profile) requires iterative optical modeling, material formulation, and processing optimization. These technical barriers limit new entrants; most manufacturers have specialized in VPH technology for 10-20+ years.
Characteristic 3 – Regional Concentration in North America, Europe, Japan: North America (US) and Europe (Germany, France, UK) together account for approximately 70% of VPH grating consumption and 80% of manufacturing. Key manufacturing locations: HORIBA (Japan, France), Newport (US), Edmund Optics (US, Germany), Zeiss (Germany), Shimadzu (Japan), Dynasil (US), Kaiser Optical Systems (US), Headwall Photonics (US), Spectrogon (Sweden), Thorlabs (US), GratingWorks (US), Wasatch Photonics (US). China-based manufacturers (Shenyang Yibeite Optics, others) are gaining share in domestic market and export (price-sensitive segments) but lag in performance for high-end applications.
Characteristic 4 – Supply Chain Structure: The upstream segment involves specialized raw materials: photosensitive polymers (dichromated gelatin, photopolymer), glass substrates (high flatness, low wavefront error), precision optical coatings, and exposure equipment (high-power lasers, precision stages, environmental control). Midstream activities include grating design, holographic recording, curing, encapsulation, and quality assessment. The downstream segment includes integration into spectrometers, hyperspectral imaging systems, laser modules, and scientific or industrial instruments.
Exclusive Observation – Pricing Power and Margins: Industry gross margins (30-50%) are significantly higher than standard optics (15-25%) due to technical differentiation, customization, and limited competition. Premium manufacturers (HORIBA, Zeiss, Newport) maintain 45-50% gross margins on high-performance custom VPH gratings for demanding applications (astronomy, military, semiconductor inspection). Value-oriented manufacturers (Edmund Optics, Thorlabs standard catalog) operate at 30-35% margins with higher volume, lower unit price. The market research indicates that margin pressure will increase as Chinese manufacturers gain capability and offer lower-priced alternatives (20-30% discount), potentially compressing margins for mid-tier products by 3-5 percentage points over the forecast period.
4. Recent User Cases and Technical Developments (2025-2026)
User Case – Raman Spectroscopy System Upgrade: A scientific instrument manufacturer upgraded their Raman spectroscopy system (used for pharmaceutical raw material identification) from a surface-relief grating to a custom transmission VPH grating (900 lines/mm, 85% efficiency at 785 nm excitation). Post-upgrade results: 40% improvement in signal-to-noise ratio (enabling faster measurements, lower laser power), 25% reduction in spectral acquisition time (for equivalent SNR), and reduced stray light (improved weak-signal detection). The VPH grating cost USD 850/unit (2x the surface-relief grating), but the instrument manufacturer justified the premium based on performance differentiation in competitive bids.
User Case – OEM Spectrometer Design Win: A Chinese medical device manufacturer developing a point-of-care OCT system for ophthalmology selected a custom transmission VPH grating (1000 lines/mm, 80% efficiency over 800-1100 nm) from Shenyang Yibeite Optics (domestic supplier) over imported alternatives (HORIBA, Wasatch Photonics). Key selection factors: 20% lower price (USD 450 vs. USD 560-650), local technical support (faster design iteration), and adequate performance for ophthalmology application (80% efficiency vs. 85-90% for premium imported gratings). The OEM projected annual volume of 5,000-10,000 units within 3 years, representing significant revenue potential for the VPH grating supplier.
Exclusive Observation – Environmental Monitoring Application Growth: Government environmental monitoring agencies (US EPA, China MEE, EU EEA) are expanding air quality and water quality monitoring networks. VPH grating-based spectrometers are used for trace gas detection (DOAS, FTIR) and water contaminant analysis (UV-Vis absorbance). These applications require long-term stability, temperature insensitivity, and consistent performance across instruments (multiple monitoring stations). VPH gratings meet these requirements better than surface-relief alternatives. The market research indicates environmental monitoring will be a 5-6% CAGR growth segment for VPH gratings through 2031.
5. Technical Challenges and Future Outlook (2026-2032)
Technical Challenge – Temperature and Environmental Stability: Dichromated gelatin (DCG) VPH gratings have sensitivity to humidity and temperature extremes. Manufacturers have improved encapsulation and developed photopolymer-based VPH gratings with enhanced environmental stability (reduced humidity sensitivity, wider operating temperature range -20°C to +60°C). Photopolymer materials (commercially available from several manufacturers) are replacing DCG for most applications, though DCG remains preferred for highest efficiency requirements.
Technical Challenge – High Damage Threshold for Laser Applications: VPH gratings for high-power pulse laser applications (femtosecond lasers, CPA systems) must withstand high peak intensities without damage. Damage thresholds of photopolymer VPH gratings (typically 0.5-2 J/cm² for picosecond pulses) are lower than surface-relief gratings on fused silica (5-20 J/cm²). Laser system manufacturers specify VPH gratings for lower-power applications (spectroscopy, metrology) but prefer surface-relief gratings for high-power systems.
Future Industry Directions (2026-2030):
Extended Wavelength Range (UV, SWIR): VPH grating optimization for ultraviolet (200-400 nm) and short-wave infrared (1400-2500 nm) applications enables new spectroscopy applications (UV Raman, SWIR hyperspectral imaging). Material and recording process development underway; commercial products expected 2026-2028.
Metasurface and Flat Optics Integration: Research on combining VPH gratings with metasurface structures for additional optical functionality (polarization control, beam shaping). Commercial products not expected within forecast period.
Shenyang Yibeite Optics and Other Chinese Manufacturers Gaining Share: Chinese VPH grating manufacturers are improving quality and gaining domestic market share (estimated 20-25% of China market, up from 10-15% in 2020). Export to price-sensitive segments in Southeast Asia, India, Latin America.
Exclusive Forecast Observation – Spectroscopy Dominates, OCT Fastest Growth: Spectroscopy applications (Raman, fluorescence, NIR, UV-Vis) remain the largest application segment (40-45% of market value) through 2031, driven by ongoing demand for laboratory and industrial spectroscopy. OCT (15-20% share) is the fastest-growing segment (8-9% CAGR) due to medical imaging expansion (ophthalmology, cardiology, new indications). Pulse laser systems (20-25% share) grow at 4-5% CAGR. Optical communication (25-30% share) grows at 2-3% CAGR (market maturity). Other applications (astronomy, environmental monitoring, semiconductor inspection) grow at 5-6% CAGR.
6. Conclusion – Steady Growth in Specialized Optical Component Market
The VPH (Volume Phase Holographic) Grating market is positioned for steady growth from USD 130 million to USD 178 million at a 4.7% CAGR through 2031, driven by demand for high-efficiency optical components in spectroscopy, OCT, and laser systems. Transmission gratings dominate (60-65% share), with reflection gratings (35-40%) serving laser and astronomy applications. HORIBA, Newport (MKS), Edmund Optics, Zeiss, and Shimadzu lead the concentrated market, with gross margins (30-50%) reflecting technical differentiation and customization services. Custom VPH gratings are growing faster (6-7% CAGR) than standard catalog products (3-4% CAGR) as instrument manufacturers seek performance differentiation. OCT is the fastest-growing application segment (8-9% CAGR). For manufacturers, key strategic priorities include photopolymer material development (replacing DCG, improving stability), extended wavelength range capabilities (UV, SWIR), customization and engineering support services, and emerging market expansion (China domestic, Southeast Asia). For investors, the VPH grating market offers specialized niche with stable growth and high margins, though market size is modest relative to broader optics categories.
For detailed competitive benchmarking, regional adoption analysis, product type forecasts (transmission, reflection), application analysis (optical communication, OCT, pulse laser systems, others), and 36-month rolling projections across 8 major regions, the full QYResearch report provides actionable intelligence for strategic planning and investment decision-making.
Contact Us:
If you have any queries regarding this report or if you would like further information, please contact us:
QY Research Inc.
Add: 17890 Castleton Street Suite 369 City of Industry CA 91748 United States
EN: https://www.qyresearch.com
E-mail: global@qyresearch.com
Tel: 001-626-842-1666(US)
JP: https://www.qyresearch.co.jp
