耦合器、分束器及合束器
光纤耦合器是一种实现光信号功率在不同光纤间的分配或组合的光器件，实现方式有熔融拉锥式、滤光片式和光波导式三种。
恒研光电提供各种结构(1X2,2X2,1X3,1XN)的光纤耦合器，波长涵盖400-1700nm，光纤可选各种单模光纤、多模光纤和保偏光纤等。
偏振分束/合束器（PBS/PBC）可以把一个输入光信号中的正交偏振分量分离到两个输出光纤中，或者将两个输入偏振光信号组合到一个输出光纤中。
恒研光电提供各种偏振分束/合束器，波长涵盖400-1700nm，输入和输出光纤均可选各种单模光纤和保偏光纤。
Single-Mode Coupler
Single-Mode Coupler - Standard 1x2, 2x2 (1310, or 1550nm)
Single-Mode Coupler - Standard 1x2, 2x2 (2000nm)
Single-Mode Coupler - Standard Monolithic 1x3, 3x3 (1310, 1480, or 1550nm)
Single-Mode Coupler - Standard Monolithic 1x4 (1310, or 1550nm)
Single-Mode Single-Window Coupler - Wide-Band Tree and Star Module (1310, or 1550nm)
Dual-Window Coupler & Tri-Window Coupler
Single-Mode Dual-Window Coupler - Wide-Band (1310_1550nm)
Single-Mode Dual-Window Coupler - Monolithic 1x3, 3x3 (1310_1550nm)
Single-Mode Dual-Window Coupler - Monolithic 1x4 (1310_1550nm)
Single-Mode Dual-Window Coupler - Tree and Star Module (1310_1550nm)
Single-Mode Tri-Window Coupler (1310_1490_1550nm)
Single-Mode Tri-Window Coupler - Tree and Star Module (1310_1490_1550nm)
Multi-Mode Coupler
Fused(WDM)Wavelength Division Multiplexer
Polarization Maintaining (PM) Fused Coupler
PLC Waveguide Splitter
Mechanically Tunable Splitter/Combiner
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