OPTICAL FITLER SUBASSEMBLY FOR COMPACT WAVELENGTH DEMULTIPLEXING DEVICE

摘要

In the field of fiber optic communication, Wavelength Division Multiplexing (WDM) devices are used to combine wavelengths of light onto a single strand of fiber. To construct a WDM device, the optical components such as mirrors and filters must be cut in precise angles and positioned in parallel orientations to separate or combine wavelengths of light. The expenditure for implementation of free-space WDM devices can be prodigiously high and costly for compact devices. Techniques for designing optical components to manufacture a compact free-space WDM device including a surface mount assembly are disclosed. In addition to the common optical components used in a WDM device, a hybrid subassembly is included to assist in the orientation of optical components when manufacturing the compact device.

主权项

1. An optical assembly having a multiplexer mode and a demultiplexer mode, comprising:
an optical base; a reflection element set placed on the optical base for reflecting light beams exiting the optical base back to the optical base; and a plurality of optical filters placed on the optical base; wherein at least one light beam passes through either the reflection element set or the optical filter, enters the optical base, undergoes reflections within the optical base, scatters/converges and then exits the optical assembly.