Patent ID: 9711929
Date: 2017-07-18
CPC Classifications: G02B

Claim:
1. An apparatus comprising a case, an optical amplifier, and an optical transceiver, the optical amplifier and the optical transceiver included in the case, wherein the case comprises a top portion and a bottom portion, the top portion including first to third sections arranged in a direction perpendicular to a direction extending from the top portion to the bottom portion, wherein the first section has a larger area than the third section and the second section divides the first and third sections, wherein the third section comprises a first cavity including at least one portion of the optical amplifier, and wherein the optical amplifier is provided using at least one of an amplifying fiber, a pumping light source, an isolator, a wavelength-division multiplexer (WDM) coupler, a wavelength-variable optical filter, a monitoring-tap photo diode, and a driving control unit.