1940nm Polarization Maintaining Dual Fiber Collimator

The Dual 1940nm PM Fiber Collimator is the basic element for in-line PM fiber optics components, such as PM Circulators and PM WDM. It has high extinction ratio, low insertion and high return loss. The unique processing and high-quality AR coating also enable this collimator to handle high power.

If you do not see a standard PM Fiber Collimator that meets your needs, we welcome the opportunity to review your desired specification and quote a custom PM Fiber Collimator. Requests for custom fiber pigtails, different wavelengths and handling power of operation or other specific needs will be readily addressed.

Polarization Maintaining Dual Fiber Collimator

Performance Specifications

PARAMETER	UNIT	VALUE
Operating wavelength (λc)	nm	1940
Operating wavelength range	nm	±50
Working Type	–	Transmission			Reflection
Working Distance	mm	5~10	11~30	31~50	0mm for G-lens,2.4mm for C-lens
Max. Insertion Loss (λc @1940nm)	dB	0.40	0.50	0.60	0.40
Min. Extinction Ratio (@23℃)	dB	22
Min. Return Loss	dB	55
Fiber Type	–	PM1550(default) or PM1950 Panda fiber
Max. Power Handling	W	0.5, 1, 3, 5, 10
Operating temperature	℃	-5~+70
Storage temperature	℃	-40~+85
Dimension	mm	Φ3.2×10(Metal holder) or Φ2.78×9.0 (Glass tube)

The specifications are w/o connector. Other lens sizes can also be customized according to requirements.
For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower and ER will be 2dB lower. The default connector key is aligned to slow axis. Power transmits through the connector less than 2W.
When purchasing the collimator, please inform us whether it is used alone or in pairing. If paired, we will pack and ship the paired ones together.
For G-lens, Working Distance <20mm.

Package Dimension

Polarization Maintaining Dual Fiber Collimator

Order information

P/N: PMCOLL-D-②-③-④-⑤-⑥-⑦-⑧-⑨-⑩(D: Dual fiber)

When you inquire, please provide the correct P/N number according to our ordering information and attach the appropriate description would be better. If need any connector, we do not recommend choosing a 250μm bare fiber pigtail.

①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
Wavelength	Working Distance	Power Handling	Working Type	Slow axis Orientation	Lens Type	Pigtails Diameter	Fiber Length	Connectors	Dimension
1940:1940nm XX: Others	0: <0mm 5: 5mm 10:10mm	L:<0.5W 1:1W 3:3W 5:5W	T:Transmission R:Reflection	E: As drawing G: As drawing	C: C-lens G: G-lens	25:250μm bare fiber 90:900μm Loose Fiber XX: Others	10:1.0m 13:1.3m 15:1.5m 20:2.0m XX: Others	00: None FP: FC/PC FA: FC/APC SA: SC/APC LA: LC/APC XX: Others	3.2×10 2.78×9

Part Number Example: PMCOLL-D-1940-5-L-T-E-C-25-10-00-2.78X9

Description:1940nm Polarization Maintaining Dual Fiber Collimator, 5mm working distance ,0.5W hand power, Transmission type, E type slow axis, C lens, PM1550 panda fiber, bare fiber, 1.0m fiber length, and no connector, package dimension:2.78x9mm.

Ordering Information for Custom Parts:

If you need to customize other specifications, please provide detailed description for your requirement.

Product

PM Fiber Collimator

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