780nm Single Mode Single Fiber Collimator / Fiber optic focuser

The 780nm SM Single Mode Fiber Collimator is the basic element for in-line fiber optics components, such as optical isolator and optical WDM. It has high 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 Fiber Collimator that meets your needs, we welcome the opportunity to review your desired specification and quote a custom Fiber Collimator. Requests for custom fiber pigtails, different wavelengths and handling power of operation or other specific needs will be readily addressed.

Single Fiber Collimator / Fiber optic focuser

Performance Specifications

PARAMETER	UNIT	VALUE
Type	–	Standard		Long working distance
Operating wavelength (λc)	nm	780,850
Operating wavelength range	nm	±30
Max. Working Distance	mm	20		50~100(C-lens)
Grade	–	P	A	A
Max. Insertion Loss (λc)	dB	0.25	0.30	0.35
Waist Beam Diameter	mm	~0.42		~0.45
Min. Return Loss	dB	60	55	55
Fiber Type	–	CS780
Max. Power Handling	W	0.5, 1, 3, 5
Operating temperature	℃	-5~+70
Storage temperature	℃	-40~+85
Dimension	mm	Φ2.78Xl9(Glass tube)
Dimension	mm	Φ3.2xL10(Metal)

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. Power transmits through the connector less than 2W.Measured at the alignment wavelength at 1/2 working distance.
Waist Beam Diameter is measured at the alignment wavelength at 1/2 working distance. The beam diameter of the finished collimator varies when used at different working distances.
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.

Package Dimension

Fiber Collimator / Fiber optic focuser

PS: The above are only typical dimensions, and the size of different working distances and spot sizes may vary.

Order information

P/N: COLL-S-②-③-④-⑤-⑥-⑦-⑧(S: single 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
Wavelength	Working Distance	Power Handling	Lens Type	Pigtails Diameter	Fiber Length	Connectors	Dimension
78:780nm 85:850nm XX: Others	0: 0mm 5: 5mm 10:10mm	L:<0.5W 1:1W 3:3W 5:5W	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: COLL-S-78-5-L-C-25-10-00-2.78X9

Description: 780nm SM Single Fiber Collimator, 5mm working distance ,0.5W handling power, C lens, 780-HP fiber, bare fiber, 1.0m fiber length, and no connector, package dimension:2.78x9mm.Used alone.

Ordering Information for Custom Parts:

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

Product

Fiber Optical Collimator

Products