Description

single stage/dual stage fiber optical isolator +wdm Hybrid Device for Fiber Amplifier

 

1. Description:

The IWDM is built based on isolator and thin film filter to fullfill hybrid isolator+WDM function in one single compact package, it includes two different confugration due to pump direction, “forward pump” and “backward pump”.

 

2. Features:

Wide Operating Wavelength

Low IL & PDL & High Isolation

High Stability and Reliability

 

3. Application: 

Fiber Amplifier

Fiber optic Instrument

4. Specifications:

Parameters	Unit	1480/1550		980/1550
Isolator Stage	—	Single Stage	Dual Stage	Single Stage	Dual Stage
Isolation	dB	≥21	≥36	≥21	≥36
Insertion loss (Signal)	dB	≤0.6	≤0.8	≤0.9	≤1.0
PMD	ps	≤0.25	≤0.05	≤0.25	≤0.05
Signal wavelength range	nm	1528~1565(C-band)		1528~1565(C-band)
Pump wavelength range	nm	1450~1490		960~990
Insertion loss (Pump)	dB	≤0.5		≤0.6
Transmitted Isolation (Pump)	dB	≥30		≥30
Reflected Isolation (Signal)	dB	≥15		≥15
PDL	dB	≤0.10
WDL	dB	≤0.3
Directivity	dB	≥55
Return loss	dB	≥50
Thermal stability	dB/℃	≤0.005
Power handling	mW	≤500
Operating temperature	℃	0 ~ +70
Storage Temperature	℃	-40 ~ +85
Package dimension	mm	5.5 × 38
Fiber Type:( Common / Pump)	—	SMF-28e		Hi1060
Fiber Type (Signal)	—	SMF-28

Remark:

* Above specifications are for device without connector.

* For devices with connectors, please refer to patchcord spec., the “fiber length” is with connectors.

* Other WDM function can be customized.

5.Ordering lnformation:

PG-	Stage	Pump type	Wavelength	Pigtail type	Package	Connector	Fiber length
	S=single stage D=dual stage	F=forward Pump B=backward pump	1598=T15/R98 1514=T15/R14 etc	0=Bare fiber 1=0.9mm Loose tube 2=2mm 3=3mm S=specified	5.5x38mm	FP=FC/PC FA=FC/APC SP=SC/PC SA=SC/APC etc	05=0.5m 08=0.8m 1=1m 10=10m