Patent ID: 9106338
Filing Date: 2015-08-11
Classification: G02B,H04B

Abstract:
1. A bidirectional communication system, comprising: an optical medium having a first end and a second end; a first opto-electronic assembly optically coupled via a first optical assembly to the first end of the optical medium, the first opto-electronic assembly including a first light source, a primary light detector, and a first monitor arranged on a surface of a first substrate such that the first light source emits a first optical signal at a first wavelength along a first optical axis normal to the surface of the first substrate and such that the first monitor receives a portion of the first optical signal along a second optical axis parallel to the first optical axis when the first optical signal and the portion of the first optical signal are proximal to the first light source and the first monitor, respectively; and a second opto-electronic assembly coupled via a second optical assembly to the second end of the optical medium, the second opto-electronic assembly including a second light source, a secondary light detector, and a second monitor arranged on a surface of a second substrate such that the second light source emits a second optical signal at a second wavelength different from the first wavelength along a third optical axis normal to the surface of the second substrate and such that the second monitor receives a portion of the second optical signal along a fourth optical axis parallel to the third optical axis when the second optical signal and the portion of the second optical signal are proximal to the second light source and the second monitor, respectively; wherein the first optical assembly includes a first optical element that redirects the first optical signal to the first end of the optical medium and redirects the second optical signal to a second optical element transparent to the first optical signal at the first wavelength and that redirects the second optical signal to the primary light detector, and wherein the first optical assembly further includes a third optical element and a fourth optical element wherein the first optical element and the third optical element generate total reflection for incident light at the first wavelength and wherein the first optical element generates total reflection for incident light at the second wavelength.