Patent ID: 8447151

Claim:
A triplexer, comprising: an optics block including a first port configured to receive a first light beam at a first wavelength and a second light beam at a second wavelength, and a second port configured to receive a third light beam at a third wavelength; a bounce cavity between the first and second ports, the bounce cavity being formed by opposing reflective elements adjacent respective surfaces of the optics block; a first grating opposite the first port, the first grating receiving all three light beams at substantially a same location thereon, the first grating configured to provide the first and second light beams to the bounce cavity and the third light beam to the first port; and a second grating opposite the second port, the second grating receiving the first and second light beams at spatially separated portions thereon, the second grating configured to provide the first and second light beams adjacent the second port.