1064/1550 nm Ultra Low Ratio Tap Coupler

The Ultra Low Ratio Tap Coupler splits a very small amount of light from a signal path to a tap port. Low tap ratios such as 0.1%, 0.01% or 0.001% enable the monitoring photodetector to operate without damage or saturation. It is suitable for very high optical power, its main application is in the monitoring of optical sources such as fiber lasers.

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Product Detail

Key Features	Applications
High Power Handling	High Power Fiber Laser
High Return Loss

Specifications

Parameter	Unit	Value
Center Wavelength (λc)	nm	1064 or 1550 or specify
Operating Wavelength	nm	λc ± 10
Coupling Ratio	%	0.1	0.01	0.001
Tap Insertion Loss^{1, 2}	dB	30 ± 3	40 ± 4	50 ± 5
Max. Signal Insertion Loss^{1, 2}	dB	0.1
Thermal Stability	dB/℃	≤ 0.002
Min. Return Loss³	dB	55
Max. Optical Power (Continuous Wave)⁴	W	30
Operating Temperature	℃	- 40 to + 75
Storage Temperature	℃	- 40 to + 85
Fiber Type	-	Singlemode Fiber

¹Test at central wavelength only.
²IL is 0.5 dB higher for each connector added.
³RL is 5 dB lower for connector added.
⁴The Optical Power is 1 W only for connector added.

Coupler/Splitter

1064/1550 nm Ultra Low Ratio Tap Coupler

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