US 11,658,452 B2
Powering up an optical amplifier in an optical line system
Choudhury A. Al Sayeed, Stittsville (CA); Bing Liu, Kanata (CA); Damian Flannery, Ottawa (CA); and Jean-Luc Archambault, Ottawa (CA)
Assigned to Ciena Corporation, Hanover, MD (US)
Filed by Ciena Corporation, Hanover, MD (US)
Filed on Feb. 11, 2021, as Appl. No. 17/173,844.
Prior Publication US 2022/0255282 A1, Aug. 11, 2022
Int. Cl. H01S 3/00 (2006.01); H01S 3/067 (2006.01); H01S 3/10 (2006.01)
CPC H01S 3/06779 (2013.01) [H01S 3/10015 (2013.01); H01S 3/10069 (2013.01); H01S 2301/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical amplifier configured as an intermediate line amplifier in an optical network, the optical amplifier comprising:
one or more gain units each configured to amplify an optical signal;
a processing device; and
a memory device configured to store a bootstrap program having instructions that, when executed, enable the processing device to
block an input to the one or more gain units,
cause the optical amplifier to operate in an Amplified Spontaneous Emission (ASE) mode, and
measure back-reflection detected at an output of the optical amplifier based on the ASE, independent of any upstream or downstream connectivity and fault conditions, and such that the intermediate line amplifier is tested in stand-alone relative to other sites in the optical network.