General Optics

Transmission Gratings

Use transmission gratings to angularly disperse light by wavelength and benefit from our proprietary fabrication method that delivers both economy and superior performance.

These gratings feature high diffraction efficiency (95% typical) and low polarization-dependent loss (PDL), minimizing losses particularly in multipass designs. Their high optical damage threshold is ideal for use with high-energy pulsed and CW laser systems.

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Transmission Gratings – Some Key Specifications

Use gratings supporting both S and P polarizations over the operation wavelength range; the diffraction efficiency is simply the average efficiency of S and P polarization.

Part Number Prefix (Click Link for Datasheet)	Optimal Wavelength Range (nm)	Operational Polarization	Angle of Incidence (°)	Diffraction Efficiency (%)	Line Density (Lines/mm)
T-1400-800	800±20	S and P	34.0±1	≥94	1398.6
T-1850-800s	800±20	S	47.8±1	≥94	1851.85
T-1200-850s	850±20	S	30.7±1	≥94	1208.46
T-1500-875	875±20	S and P	41.0±1	≥94	1503.76
T-1702-895	895±20	S and P	49.5±1	≥94	1702.13
T-1850-915s	915±10	S	57.9±1	≥93	1851.85
T-1500-930	930±20	S and P	44.2±1	≥94	1500.38
T-1600-970s	970±10	S	51.3±1	≥94	1600
T-1850-970s	970±10	S	63.9±1	≥93	1851.85
T-1600-1030s	1030±10	S	55.5±1	≥94	1600
T-1702-1030s	1030±10	S	61.2±1	≥94	1702.13
T-1739-1030s	1030±10	S	63.6±1	≥94	1739.13
T-1000-1040	1040±20	S and P	31.3±1	≥94	1000
T-1600-1060s	1060±20	S	58.0±1	≥94	1600
T-1200-1310	1275-1345	S and P	52.0±1	≥94 peak	1201.2
T-966C	1525-1565	S and P	48.3±1	≥94	966.18
T-940C	1525-1565	S and P	46.5±1	≥94	940.07
T-1000C	1525-1565	S and P	50.6±1	≥94	1000
T-1200C	1529-1568	S	68±1	≥90	1201.2
T-940L	1570-1610	S and P	48.4±1	≥92	940.07
T-940CL	1526-1610	S and P	47.5±1	≥92	940.07
T-711-1650	1500-1800	S and P	35.5±1	≥95% peak, ≥85% over range	711.24

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