Single-Mode Fiber Coupler

Excellent Optical Performance
Compact Size
High Reliability and Stability

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Description

Key Features

Excellent Optical Performance
Compact Size
High Reliability and Stability

product-500-500

Applications

FOG
Optical Fiber
Communication System

Product Introduction

Company's single-mode fiber coupler series includes 1×2 or 2×2 couplers and 1×3 couplers. Manufactured by the fused biconical taper (FBT) method, the single-mode fiber couplers feature a compact package size, excellent optical performance, and high reliability and stability, making them an ideal choice for both single-axis and three-axis fiber optic gyroscopes.

Unique Technology

Company is a high-tech enterprise with full closed-loop capabilities from fiber winding equipment and coils to FOGs, fiber/MEMS inertial products, IMU circuits, software, and test equipment. End-to-end process control improves quality and reduces costs. Operating under ISO9001 with strict processes, it ensures product reliability and consistency.

Parameters

1x2/2x2/1x3 Single-Mode Fiber Coupler Specifications

Item	Value
Structure	1x2 or 2x2		1x3
Operating Wavelength (nm)	1310 / 1550		1310 / 1550
Splitting Ratio	(50±2) / (50±2)		(33.3±2) / (33.3±2) / (33.3±2)
Splitting Ratio Variation (@Full Temp.)	±1%
Insertion Loss (dB)	≤3.5		≤5.6
Excess Loss (dB)	≤0.15
Polarization Dependent Loss (dB)	≤0.15
Wavelength Dependent Loss (dB)	≤0.3		≤0.5
Temperature Stability (dB)	≤0.002
Return Loss (dB)	≥50
Pigtail (μm)	CS1011-A(125)	CS1011-B(80)	CS1011-A (125)	CS1011-B (80)
Fiber Mode Field Diameter (μm@1310nm)	6.4±0.5
Fiber Mode Field Diameter (μm@1550nm)	7.2±0.5
Pigtail Length (m)	≥1
Package Dimensions (mm)	ф2.5x25	ф2.5x20	ф3x25	ф3x30
Operating Temperature (°C)	-45 ~ +70
Storage Temperature (°C)	-55 ~ +85