SYSTEMS AND METHODS FOR LIGHT AMPLIFICATION

摘要

A system for optical amplification includes an optical fiber with a core containing a gain medium surrounded by a cladding, a seed light source, a control light source, and a pump source. The seed light source transmits seed light, at a first wavelength and having a first linewidth greater than 100 MHz, into the core of the fiber. The control light source transmits control light, at a second wavelength shorter than the first wavelength, into the core where it interacts with the pumped gain medium so as to reduce the peak rate of heat deposition per unit length along the fiber. The control light has a second linewidth greater than 100 MHz. The pump source transmits pump light at a pump wavelength, shorter than the second wavelength, into the fiber so as to pump the gain medium and amplify the seed light.

主权项

1. A system for optical amplification, the system comprising:
an optical fiber comprising a core surrounded by a cladding, the core comprising a gain medium characterized by a gain spectrum; a seed light source, in optical communication with the core, to transmit seed light, at a first wavelength in the gain spectrum, into the core of the optical fiber so as to amplify the seed light, the seed light having a first linewidth greater than 100 MHz; a control light source, in optical communication with the core, to transmit control light, at a second wavelength in the gain spectrum, into the core so as to reduce a peak rate of heat deposition per unit length along the optical fiber, the control light having a second linewidth greater than 100 MHz; and a pump source, in optical communication with the optical fiber, to transmit pump light at a pump wavelength into the fiber so as to pump the gain medium and amplify the seed light.