Patent ID: 9057841
Filing Date: 2015-06-16
Classification: G02B,Y10T

Abstract:
1. A wavelength division multiplexing (WDM) coupler comprising: an input block including a first tube, the first tube holding an input dual fiber pigtailed capillary, the capillary holding an input fiber and a reflection fiber; a center block including a center tube holding a first inner tube and a second inner tube, the first inner tube holding a first lens within the first inner tube and the second inner tube holding a second lens within the second inner tube, the center block further including a WDM filter positioned between the first lens and the second lens and secured to the end surface of the first inner tube and an optical component positioned between the first lens and the second lens and secured to the end surface of the second inner tube; and an output block including a second tube holding an output single fiber pigtailed capillary, the capillary holding a transmission fiber, where the coupler inputs a signal from the input fiber, and outputs the transmitted signal through the transmission fiber and the reflected signal through the reflection fiber.