Inventor
SRIDHAR BALAKRISHNAN
US36 patents
⚠️ This page may combine multiple inventors who share the name “SRIDHAR BALAKRISHNAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIENA CORP
27 patentsUS6049413AApr 11, 2000
Optical amplifier having first and second stages and an attenuator controlled based on the gains of the first and second stages
CIENA CORP210 citations99
US5778118AJul 7, 1998
Optical add-drop multiplexers for WDM optical communication systems
CIENA CORP190 citations99
US6178038B1Jan 23, 2001
Optical amplifier having an improved noise figure
CIENA CORP87 citations98
US5963361AOct 5, 1999
Optical amplifier having a variable attenuator controlled based on detected ASE
CIENA CORP92 citations98
US6061171AMay 9, 2000
Optical amplifier having a variable attenuator controlled based on input power
CIENA CORP67 citations96
US6057959AMay 2, 2000
Optical amplifier having substantially uniform spectral gain
CIENA CORP66 citations96
US6765659B1Jul 20, 2004
Optical supervisory channel apparatus and method for measuring optical properties
CIENA CORP69 citations95
US7826748B2Nov 2, 2010
Systems and methods for adaptive gain control to compensate OSNR penalty caused by side-lobe of MEMS-based reconfigurable optical add-drop multiplexers
CIENA CORP26 citations92
US6904241B2Jun 7, 2005
Power balanced optical add multiplexer and power balancing methods therefore
CIENA CORP21 citations92
US6900931B1May 31, 2005
Three-stage optical amplifier having flat spectral gain
CIENA CORP21 citations92
US10237633B2Mar 19, 2019
Systems and methods for modular deployment and upgrade of multiple optical spectrum bands in optical transmission systems
CIENA CORP17 citations86
US10263386B1Apr 16, 2019
Four-wave mixing reduction due to raman pumps in optical communication systems
CIENA CORP15 citations85
US9793986B2Oct 17, 2017
Raman amplifier system and method with integrated optical time domain reflectometer
CIENA CORP9 citations84
US7634194B2Dec 15, 2009
Multi-channel protection switching systems and methods for increased reliability and reduced cost
CIENA CORP18 citations84
US7512343B2Mar 31, 2009
Bidirectional communication system
CIENA CORP14 citations84
US7400443B1Jul 15, 2008
Method and apparatus for optical amplifying device gain control with gain threshold
CIENA CORP10 citations84
US7369300B2May 6, 2008
Optical amplifier pre-emphasis and equalization method and optical communications system incorporating same
CIENA CORP10 citations84
US6204958B1Mar 20, 2001
Optical amplifier having a substantially flat gain spectrum
CIENA CORP16 citations84
US7075711B2Jul 11, 2006
Optical communication system having dynamic gain equalization
CIENA CORP11 citations82
US6525870B1Feb 25, 2003
Method and system for controlling Raman gain flatness sensitivity to pump laser wavelength variation
CIENA CORP16 citations80
US10374704B2Aug 6, 2019
Raman amplifier system and method with integrated optical time domain reflectometer
CIENA CORP4 citations73
US8885248B2Nov 11, 2014
Raman amplifier gain compression systems and methods based on signal power monitoring
CIENA CORP4 citations73
US6885825B2Apr 26, 2005
Power balanced optical add/drop multiplexer and power balancing methods therefore
CIENA CORP10 citations73
US7092148B1Aug 15, 2006
Optical communication system having dynamic gain equalization
CIENA CORP7 citations72
US6101423AAug 8, 2000
Method and apparatus for sorting components
CIENA CORP13 citations68
US8373926B2Feb 12, 2013
Differentiation of power and channel count changes in optically amplified links
CIENA CORP3 citations59
US9065247B2Jun 23, 2015
Differentiation of power and channel count changes in optically amplified links
CIENA CORP0 citations48
EQUINIX INC
4 patentsUS11637637B1Apr 25, 2023
Hybrid compensation of chromatic dispersion in optical networks
EQUINIX INC0 citations59
US12107680B2Oct 1, 2024
Monitoring burst errors in forward error correction frames
EQUINIX INC1 citations56
US12028660B2Jul 2, 2024
Cascaded optical switch
EQUINIX INC0 citations48
US12133032B2Oct 29, 2024
Optical switch with integrated fast protection
EQUINIX INC0 citations47
SRIDHAR BALAKRISHNAN
3 patentsUS8873135B2Oct 28, 2014
Extended dynamic range optical amplifier
SRIDHAR BALAKRISHNAN9 citations82
US8867912B2Oct 21, 2014
Optical service channel systems and methods over high loss links
SRIDHAR BALAKRISHNAN4 citations71
US8606108B2Dec 10, 2013
Dispersion slope compensation and dispersion map management systems and methods
SRIDHAR BALAKRISHNAN3 citations61