Polarization Maintaining Dual Fiber Collimator

The Polarization Maintaining Dual Fiber Collimator is a fundamental component for in-line PM fiber optic devices, such as PM isolators and PM FWDMs. It provides high extinction ratio to maintain stable polarization, low insertion loss for efficient optical transmission, and high return loss to minimize back reflection. Advanced processing and high-quality AR coatings further enhance performance, enabling reliable operation even under high-power conditions.

Parameter	Unit	Values
Center Wavelength	nm	980, 1064 or specified
Operating Wavelength Range	nm	λc ± 30
Working Type	-	Transmission Type			Reflection Type
Working Distance	mm	5 - 10	11 - 30	31 - 50	0 mm for G Lens, 2.4 mm for C Lens
Typ. Insertion Loss @ 23 ℃	dB	0.25	0.30	0.35	0.25
Max. Insertion Loss @ 23 ℃	dB	0.30	0.40	0.45	0.30
Min. Extinction Ratio @ 23 ℃	dB	20
Min. Return Loss @ 23 ℃	dB	55
Max. Optical Power	W	0.3, 0.5 .… 3
Max. Tensile Load	N	5
Fiber Type	-	PM Panda Fiber or Specified
Operating Temperature	℃	-5 to +70
Storage Temperature	℃	-40 to +85