供应美国LightSmyth高级透射光栅Premium Transmission

1. Premium Transmission Gratings （高级透射光栅）:

High Efficiency Polarization-Independent Transmission Gratings for Optical Telecommunications

Transmission gratings operate to angularly disperse incident light into a spectrum. LightSmyth's transmission gratings utilize state-of-the-art design and precise lithographic wafer-scale fabrication to deliver record-breaking optical performance combined with low cost, providing your optical systems with a powerful competitive edge. These gratings provide the world's best combination of highest diffraction efficiency, low PDL and highly competitive pricing.

Measured Diffraction Efficiency Curves

Advantages:

Exceptional diffraction efficiency Ultra-low polarization-dependent loss Special design for broad passband and low angular sensitivity Uses only fused silica and highly robust dielectric materials No polymers or organics are used; Telcordia-qualified Each grating is a master; ultra-low scatter Highly competitive pricing

Applications:

Optical telecommunications (ROADM, WSS, WDM MUX/DEMUX) Pulse compression of pico- and femto-second pulses High power lasers Spectral beam combining Remote optical sensors and spectroscopy

Specifications below are for stock gratings that are available immediately. Transmission gratings of similar performance with other line densities, operating spectral bands, input/output beam geometries and substrate sizes can be supplied.

Specifications

Optical

Description T-940-C T-966-C T-940-L T-940-CL Units Groove Density 940.07 966.2 940.07 940.07 grooves/mm Operational Wavelength Range 1526-1566 (C band) 1526-1566 (C band) 1570-1610 (L band) 1526-1610 (C+L band) nm Optimum Incidence Angle1 46.5 48.3 48.4 47.5 degrees Groove Density Uniformity 0.005 0.005 0.005 0.005 grooves/mm Diffraction Efficiency (s- and p-polarization) 2 > 94 > 94 > 94 > 92 % Polarization Dependent Loss 2 < 0.2 < 0.2 < 0.2 < 0.25 dB Spectral Non-Uniformity 3 < 0.15 < 0.15 < 0.15 < 0.25 dB Spatial PDL Non-Uniformity 2 < 0.1 < 0.1 < 0.1 < 0.1 dB Datasheet coming soon coming soon coming soon coming soon N/A 1 Optical grating performance will remain substantially similar over a 5 ° variation in angle of incidence. 2 Worst case in the operational wavelength range. 3 Efficiency variation over the operational wavelength range (per polarization).

Dimensional

Description Value Grating Area Clear Aperture (CA) 0.5 mm from substrate edge Substrate Thickness 0.675 ± 0.050 mm Surface Quality in CA 60/40 scratch/dig Surface Quality outside of CA no requirements Material Fused silica substrate, non-organic dielectrics. Contains no polymers.

Ordering Information

Type Substrate Size 1 Clear Aperture Part Number C band, 940 grooves/mm 24 × 9 mm 23 × 8 mm T-940-C-2409-94 24 × 14 mm 23 × 13 mm T-940-C-2414-94 C band, 966 grooves/mm 16 × 10 mm 15 × 9 mm T-966-C-1610-94 27 × 10 mm 26 × 9 mm T-966-C-2710-94 L band, 940 grooves/mm 27.4 × 10 mm 26.4 × 9 mm T-940-L-2710-94 C+L band, 940 grooves/mm 27.4 × 10 mm 26.4 × 9 mm T-940-CL-2710-92 1 Grating grooves are perpendicular to the first substrate dimension.

Custom High-Efficiency Transmission Gratings

LighSmyth also offers custom highly-efficient transmission gratings fabricated to your specifications, including custom wavelength range, line count, size and performance levels.