الوصف

1. High extinction ratio / high reliability / high stability
2. The extinction ratio of two ports PM device all be≧*0dB(you can customized the PM device with ER≧*5dB)
3. The extinction ratio of three ports PM device all be≧*6dB(you can customized the PM device with ER≧*8dB)
4. The extinction ratio of PM pathcord all be≧*0dB(you can customized the PM pathcord with ER≧*0dB)
5. The  parameters are very stable in the temperature：0℃，*3℃，*0℃.(we can control the change of extinction ratio parameter  within 3dB)
6. The finished product with steel tube and loose tube can be tested by international standardGR*****-CORE.​
7. specifications:

8. Parameter	Unit	Value
   Center Wavelength	nm	***0, ***0	**0, ***4	**0
   Operating Wavelength Range	nm	±*0	±*0	±*0
   Working Distance	mm	*5,*0,*0
   Typ Insertion Loss	dB	0.*0	0.*5	0.*0
   Insertion Loss	dB	≤0.*5	≤0.3	≤0.*5
   Extinction Ratio	dB	≥*5	≥*5	≥*5
   Return Loss	dB	≥*0	≥*0	≥*0
   Power Handling	mW			**0
   Fiber Type	-	PM***0 or PM***0	PM**0	PM**0
   Operating temperature	°C	**0~**0
   Storage temperature	°C	**0 ~**5
   Package Dimensions	mm	Φ2.*8xL9 (P1), Φ3.2xL*0 (P2) Φ1.*0xL7 (P3), Φ1.*0xL7 (P4)

    
   *For device with connector, IL is 0.3dB higher, RL is 5dB lower, and ER will be 2dB lower.
   *The default connector key is aligned to slow axis.
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