Three-Window Coupler

Product catalog summary

Three-Window Coupler Specifications
The Three-Window Coupler (TWC) by Henan Shijia Photons Technology Co., Ltd. is designed using asymmetric coupling techniques to operate across three communication windows: 1310nm, 1490nm, and 1550nm. It maintains a consistent coupling ratio across these windows, characterized by low excess loss and low Polarization Dependent Loss (PDL). This makes it suitable for various applications in optical communication systems, CATV, and FTTH, where multiple optical signals are transmitted through a single fiber.

Features

Low excess loss
Low insertion loss and PDL
Three operating windows
High stability and reliability

Applications

Optical communication systems
CATV
FTTH

Technical Specifications

Operating Wavelength: 1310, 1490, and 1550 nm
Operating Bandwidth: 1310 ± 40 nm, 1490 ± 10 nm, and 1550 ± 40 nm
Insertion Loss (P Grade): Ranges from ≤3.4 dB for 50/50 coupling to ≤21.5 dB for 1/99 coupling
Insertion Loss (S Grade): Ranges from ≤3.6 dB for 50/50 coupling to ≤22.5 dB for 1/99 coupling
Typical Excess Loss: ≤0.15 dB (P Grade), ≤0.2 dB (S Grade)
Directivity: ≥55 dB
Operating Temperature: -40°C to +85°C

Note: Specifications provided are without connectors, and custom specifications are available upon request.

Catalog excerpts

Three-Window Coupler Three-Window Coupler Built by asymmetric coupling technique, TWC operating bandwidth is expanding to 1310nm, 1490nm and 1550nm three communication windows. The TWC coupler has the same coupling ratio on 1310, 1490 and 1550nm communication windows, with low excess loss and low PDL. TWC is widely used for communication systems, CATV, FTTH, where multiple optical signals pass through single fiber. Features: • Low excess loss • Low insertion loss and PDL • Three operating windows • High stability and reliability Applications: • Optical communication systems • CATV • FTTH Three-Window Coupler Specifications: 1. The above specification is without connector 2. Other specifications can be made on customer request. Henan Shijia Photons Technology Co., Ltd. www. sjphotons. com

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Three-Window Coupler

Three-Window Coupler

Catalog excerpts

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