2um_Fused_PM_Fiber

Micro-Optical Components

Fiber Optic Components

	Collimators and Focusers
	Fiber Cables
	Fiber Optic Adapters
	Bare Fiber Adapters
	Fused Couplers
	In-Line Fiber Optic Polarizer
	Fiber Arrays
	Modulator
	VOA/Power Monitor
	Optical Isolator
	Optical Circulator
	Optical Switch
	WDM / Splitters
	RC80um Fiber Products
	PLC Splitters
	Fiber Gratings
	Fiber Optical Tunable Filter
	Optical Variable Delay Line
	Hybrid Device
	Faraday Rotator Mirror

Light Sources & Photodiodes

Spectrometers

Wafers

Services

2um Fused PM 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 polarization maintaining couplers have low excess loss, low polarization dependent loss, low back reflection, high stability, high reliability high extinction ratio and compact size. Both 1X2 and 2X2 types are available.

Specification:

Central Wavelength (nm)		1950, 2000, 2050 or other wavelength
Bandwidth (nm)		± 20
Insertion Loss (dB)	50/50	≤ 3.7
	20/80	≤ 8.1/1.6
	10/90	≤ 11.6/0.9
	5/95	≤ 14.6/0.8
	1/99	≤ 22.5/0.7
Extinction Ratio (dB)		23 Typ, 18 Min
Excess Loss (dB)		0.30 Typ, 0.5 Max
Return Loss (dB)		> 50
Directivity (dB)		> 55
Operating Temperature (ºC)		-5 ~ 75
Dimensions (mm)		3(Φ)X60(L)
Fiber Type		PM 1550, PM 1950 or others