Technical requirements:
1.Coating requirements:1560.05nm filter coatings;operating angle:0°~2°
2.Pass band:center wavelength:1563.05nm±2nm;FWHM≤20NM;T>92%@1563.05nm±1nm
3.Stop band:Within the stop band (400nm～1800nm wave band,excluding the pass band):Tavg<0.2%;T<0.01%@1540.56nm ±1nm (0D4)
4.surface accuracy requirements:Testing is done with an interferometer;λ=632.8nm.
Uncoated condition:Transmitted wave aberration (including power):superior to 1/60 λRMS;two surface accuracy (including power);:superior to 3λPV
Coated condition:Transmitted wave aberration (including power):superior to 1/40 λRMS (testing can be done with a wavefront sensor.In the case of a subaperture of φ8.8mm:RMS:superior toλ/97;λ=1563nm;4apertures at least);parallelism:superior to 0.01mm.
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Product dimensions
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Nd
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Vd
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/
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Optical uniformity
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H2
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Optical absorptivity
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1C
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Stress birefringence
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2
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Fringe intensity
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1C
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Extent of bubble
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3
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Product dimensions
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R1
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R1
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Specimen precision △R
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A
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A
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Radius deviation N
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/
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/
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Partial deviation △N
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/
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Eccentricity c
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/
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Surface finishment MIL
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Ⅲ
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Ⅲ
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Clear aperture Do
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Ф14.1
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Ф14.1
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