TO46 inclined window

Key Features

• Inclined window design:
  

  The inclined window effectively suppresses back-reflection in the optical path, preventing reflected light from re-entering the cavity and causing instability, and safeguarding optical signal quality.

• High-reliability hermetic packaging：
  

  Hermeticity of ≤1×10⁻⁹ Pa·m³/s.

• Compatible with standard TO46 packages:

  Used together with standard TO46 headers.

Applications

• Optical communication:
  

  Used in optical communication devices such as laser diodes in TO46 packages.

• Medical and industrial equipment:

  Used for optical packaging of medical lasers and industrial inspection equipment.

Product Highlights

• Back-reflection suppression:
  

  The inclined window deflects reflected light out of the optical path, improving laser output stability.

• Customized window solutions:

  Sapphire/glass windows and a variety of coating options available on request.

• Fully in-house manufacturing:

  From material assembly to welding and testing, the entire process is produced in-house with controllable quality

How It Works

The TO46 inclined window cap works by providing an entry and exit channel for optical signals to and from the chip mounted on the header. The laser or detector chip is die-attached to the mounting surface of the TO46 header, and the cap is hermetically sealed to the header by welding. The inclined window transmits light while directing the reflections generated at the window surface away from the optical axis, preventing reflected light from returning into the cavity and forming feedback interference. The metal cap body and the window are hermetically bonded through high-temperature sealing, isolating the internal chip from the external environment and ensuring long-term stable operation of the device.

Product Parameters