Mini PM Optical Fiber Devices Series-Optizone Technology (Shenzhen) Limited

Polarization maintaining device is a general term of optical devices produced by polarization maintaining fiber. The purpose is to maintain the original polarization state of polarized light or change the polarization state when connecting or coupling the polarized light in two polarization maintaining fibers. It can be used in polarization sensitive fiber optic sensing systems such as fiber optic gyroscope and fiber optic hydrophone. It can also be used in fiber optic communication systems, fiber amplifiers, fiber lasers and other devices.

Compared with the products sold on the market, the extinction ratio of the Mini series optical fiber devices can be up to 28dB, the minimum package can be 2.5*20mm. At the same time, it has high damage threshold, high reliability and high integration.

1、Mini size PM Single Mode Standard Coupler

Features:

Small Package Dimensions

High Reliability

Wide Bandwidth

Low Insertion Loss

Parameters	Unit	Values
Center Wavelength	nm	1550, 1480, 1310,
Operating Wavelength Range	nm	±15
Coupling Ratio	%	50/50
Max. Coupling Ratio Tolerance	%	±5
Max. Excess Loss	dB	0.5
Min. Extinction Ratio	dB	20
Max. Optical Power (CW)	mW	500
Fiber Type	-	PM1550
Package Dimensions	mm	Ø3.0x30, Ø3.0x25

2、Mini Polarization Maintaining Faraday Mirror

Features:

Low Insertion Loss

Small Package Dimensions

High Reliability

Parameters	Unit	Values	Typical values
Center Wavelength	nm	1310/1550
Operating Wavelength Range	nm	±40
Typ. Insertion Loss	dB	0.4	0.4
Max. Insertion Loss	dB	0.6	0.4
Faraday Rotation Angle (Single Pass)	deg	45	45
Max. Rotation Angle Tolerance at 23℃, CWL	deg	±1
Min. Extinction Ratio	dB	20	22
Max. Optical Power (CW)	mW	500
Fiber Type	PM Panda Fiber

3、Mini Polarization Maintaining Filter Wavelength Division Multiplexer

Features:

Low Insertion Loss

High Return Loss

Excellent Environmental Stability

Parameters	Unit	Values	Typical values
Min. Return Loss	dB	50	55
Min. Extinction Ratio	dB	20	22
Min. Directivity (over Reflection Band)	dB	55	60
Thermal Stability	dB/℃	0.005	0.003
Max. Optical Power (CW)	mW	500
Fiber Type	PM Panda Fiber

4、Mini Polarization Maintaining Isolator

Features:

High Isolation

High Reliability

Low Insertion Loss

Parameters	Unit	Values		Values
Stage	-	Single	Dual	Single	Dual
Nominal Center Wavelength	nm	1064		1310, 1480, 1550
Operating Wavelength Range	nm	±5		±20
Typ. Peak Isolation	dB	40	52	40	55
Min. Isolation at 23℃	dB	28	42	28	42
Typ. Insertion Loss (Proper SOP)	dB	1.8	2.4	0.4	0.5
Max. Insertion Loss (Proper SOP)	dB	2.2	3.4	0.6	0.7
Min. Return Loss (Input/Output)	dB	55/50
Min. Extinction Ratio (only for F type)	dB	23		25
Min. Extinction Ratio (only for B Type)	dB	20
Max. Optical Power (CW, Proper SOP)	mW	300		500
Fiber Type	-	PM 980		PM 1310 or PM 1550
Package Dimensions	mm	OD3.0, L20

5、Mini Polarization Maintaining Filter Coupler

Features:

Low Insertion Loss

High Return Loss

High Extinction Ratio

Parameters	Unit	Values	Typical values
Port Type	-	12, 22
Center Wavelength	nm	850/1064/1310/1550/2000
Operating Wavelength Range	nm	+/-40
Max. IL	dB	0.7(12),0.9(22)	0.5(12),0.7(22)
Max. Uniformity	dB	0.6	0.4
Tap Ratio	%	1~99
Min. Return Loss	dB	50	50
Min. Extinction Ratio	Db	20	22
Max. Optical Power (CW, Proper SOP)	mW	500
Fiber Type	-	PM Panda Fiber

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Mini PM Optical Fiber Devices Series

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