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2 μm Polarization Maintaining Fused WDM

The 2 μm Polarization Maintaining Fused Wavelength Division Multiplexer combine or separate light at different wavelengths. They offer very low insertion loss, high extinction ratio, and excellent environmental stability.

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Product Detail

Key Features	Applications
High Extinction Ratio	Fiber Laser
Low Insertion Loss	Fiber Optic Instruments
Excellent Environmental Stability

Specifications
Parameter	Unit	Value
Longer Operating Wavelength	nm	2000 ± 20 or specify
Max. Insertion Loss¹	dB	0.7
Min. Isolation¹	dB	13
Min. Extinction Ratio²	dB	20
Shorter Operating Wavelength	nm	1570 ± 20	800 ± 20	650 ± 20
Max. Insertion Loss¹	dB	0.7	0.7	1.5
Min. Isolation¹	dB	15	15	10
Thermal Stability	dB/℃	≤ 0.005
Min. Return Loss³	dB	55
Min. Directivity	dB	55
Max. Optical Power (Continuous Wave)	mW	300
Fiber Type	-	PM 1550 Panda Fiber
Operating Temperature	℃	- 5 to + 70
Storage Temperature	℃	- 40 to + 85

¹Test at central wavelength only. IL is 0.5 dB higher for each connector added.

²ER is 2 dB lower for each connector added. Connector key is aligned to slow axis.
³RL is 5 dB lower for connector added.

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Subject : 2 μm Polarization Maintaining Fused WDM

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