optics - 2um single_mode_wideband_fused_fiber

Micro-Optical Components

Fiber Optic Components

	Collimators and Focusers
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2um Single Mode Wideband Fused Fiber Couplers

Product Description:

Fused couplers are ideal components to split or combine light signals between two fibers over a wide wavelength and temperature range. They are constructed by fusing and tapering two fibers together. The fused fiber couplers have low excess loss, low polarization dependent loss, low back reflection, high stability, high reliability and compact size. Both 1X2 and 2X2 types are available.

Specification:

Central Wavelength (nm)		1950, 2000, 2050 or other wavelength
Bandwidth (nm)		± 50
Insertion Loss (dB)	50/50	< 3.6/3.6
	40/60	< 4.8/2.8
	30/70	< 6.0/2.0
	20/80	< 8.0/1.5
	10/90	< 11.5/0.85
	5/95	< 14.5/0.75
	3/97	< 18.0/0.7
	2/98	< 18.8/0.65
	1/99	< 22.0/0.60
Excess Loss (dB)		Typical less than 0.30
Return Loss (dB)		> 50
Directivity (dB)		> 50
Operating Temperature (ºC)		-40 ~ 85 for bare fiber; -20 ~ 75 for Loose tube
Dimensions (mm)		3(Φ)X60(L)
Fiber Type		SMF-28e or SM1950