1x2(2x2) 80um /2x2 125um fused PM fiber coupler-LogFile

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1x2(2x2) 80um /2x2 125um fused PM fiber coupler

FOGPhotonics,inc uses unique fusing technique and polarization maintaining fiber to build the polarization maintaining fused gyro coupler (PMGC).The coupling ratio could be selected according to customer’s request.The gyro Coupler has low excess loss, small size and high polarization extinction ratio. PMGC is widely used for fiber optical sensors and fiber optical gyro, optical amplifier systems.We have our coupler with full tempaerature testing.The polarization-maintaining fiber coupler (PMFC) is a kind of optical coupler manufactured with polarization-maintaining fiber (PMF). It is the pivotal device to realizing the linearly polarized light coupling, the dispersion of light as well as the multiplying. It is one of the core components of the high-precision fiber optic gyroscope (FOG) and fiber optic hydrophone. This is a kind of thin-diameter PMFC (cladding diameter is 80μm), which is developed to adapt to the FOG's miniaturization. The difference between the thin-diameter PMFC (Φ80μm) and conventional PMFC (Φ125μm) in the manufacture technology has been compared. The key technologies of developing the thin-diameter PMFC (Φ80μm) has special characteristics "No tension fused taper", "On-line adjusting main axes of the PMF", "High stability package" and so on. In addition, it also has been carried on some Mechanical and environmental tests. The test results show that the thin-diameter PMFC can satisfy the requirements of the miniature FOG.

Product Features

● Low Excess Loss
● High Extinction Ratio
● High Power Handling
● Available for Slow or Fast Axis Operation
● Telcodia GR-1221 Compliant Test

Technical Specification

Specifications
Parameter		Unit	Super-P	Premium	A Grade	Super-P	Premium	A Grade
Port Configuration			1×2 or 2×2
Central Wavelength		nm	780, 830, 980, 1064			1310, 1480, 1550, 2000
Bandwidth		nm	±20
Excess Loss	Typ	dB	0.4	0.6	0.8	0.2	0.4	0.7
Excess Loss	Max	dB	0.6	0.8	1.0	0.35	0.6	0.9
Polarization Extinction Ratio	Min	dB	18	17	15	20	18	16
Operating Power	Max	W	2
Operating Temperature		°C	-40 to +85
Storage Temperature		°C	-50 to +85
Package Type		mm	S3

Above PER is for more than 10%(CR)port, it's 2dB lower for no more than 10%(CR) port, and 4dB lower for no morethan 5%(CR) port.

Note:The Standard PM fiber optic coupler works with Slow axis.If you need the Gyro coupler works with both fast and slow axis.Please let us know before you put the PO.

Splitting Ratio & Its Tolerance
		Maximum Splitting Ratio Tolerance (%)
Splitting Ratio	Super-Premium		Premium	A Grade
99/1	±0.3		±0.5	±0.7
98/2	±0.6		±0.8	±1.0
95/5	±1.2		±1.5	±1.7
90/10	±2.0		±2.2	±2.8
80/20	±2.2		±2.5	±3.3
70/30	±2.7		±3.0	±4.5
60/40	±3.5		±4.0	±6.0
50/50	±4.0		±5.0	±8.0

S3 Package:

Applications

● Optical Amplifiers

● Power Monitoring

● Coherent Communication

● Fiber Gyroscope

Ordering Information

P

M

S

C

Wavelength

4=1550nm
5=1480nm
7=1310nm
8=1064nm
9=980nm
L=780nm
K=830nm
P=2000nm
S=Specify

Structure

1=1×2
2=2×2

Splitting Ratio

99=99:1
98=98:2
95=95:5
90=90:10
80=80:20
70=70:30
60=60:40
50=50:50

Grade

S=Super P
P=Premium
A=A Grade

Package

2=S3 with 165μm bare fiber pigtail

Fiber Type

N=125/250μm bare PM fiber

Fiber Length

0=0.5m
1=0.75m
2=1.0m
S=Specify

Connector

0=None

Note:
1. Central Wavelength can be customized for different applications.

2. All specifications are subject tochange without notice.