223873 ⎘
Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication; Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form; Signal power control considering the whole optical path with a cascade of amplifiers
OPTICAL AMPLIFIER PLACEMENT METHOD, OPTICAL AMPLIFIER PLACEMENT SUPPORT APPARATUS AND RELAY APPARATUS
#2OPTICAL AMPLIFICATION APPARATUS, AND MODE DIVISION MULTIPLEXING SYSTEM INCLUDING OPTICAL AMPLIFICATION APPARATUS
#3Turn-up procedure for local and remote amplifiers in an optical system
#4Control device of modulating signal and method
#5Channelized optical amplifiers and amplifier arrays
#6Method and network control device for optimizing performance of a multi-span optical fiber network
#7Laser device for optical communication, optical communication system and use of these
#8OPTICAL AMPLIFICATION MODULE AND OPTICAL AMPLIFICATION METHOD
#9Semiconductor optical amplifier with asymmetric Mach-Zehnder interferometers
#10Proactive channel probing for wavelength switching in optical transmission systems
#11Amplified optical link having a fault-protection capability
#12Control method and system for cascade hybrid amplifier
#13Extending system reach of unrepeated systems using cascaded amplifiers
#14Method of changing operating mode of optical amplifier in an amplifier chain, optical apparatus and optical network
#15Systems and methods for optical dark section conditioning
#16Optical transmission apparatus, optical transmission system, and control method of optical transmission system
#17Method of optimizing optical signal quality in an optical communications link, optical network element and optical communications link
#18Systems and methods for capacity changes in DWDM networks including flexible spectrum systems
#19Systems and methods for optical dark section conditioning
#20Method and apparatus for equalizing link performance
#21Transmission apparatus, transmission system, and method of controlling average optical input power
#22Dynamic evaluation of the optical multiplex section per-channel pre-emphasis power
#23VERY HIGH POWER PULSED FIBER LASER
#24Configuring optical launch powers in optical fiber transmission lines
#25WDM optical transmission system and control method thereof
#26Optical pulse amplication apparatus and method
#27Optical communications in amplified reciprocal networks
#28Very high power pulsed fiber laser
#29Optical communication using shared optical pumps
#30Submarine optical repeater
#31Optical signal amplifier, method of optical amplification and optical network
#32Optical amplifier, and optical transmission system including the optical amplifier
#33Optical amplifying device
#34Optical transmission device
#35UNREPEATERED OPTICAL SEGMENT FOR USE WITH REPEATERED SERIES OF OPTICAL SEGMENTS
#36Optical amplifier and abnormality detection method for the same
#37Method, apparatus and data carrier for compensating for channel depletion of a multi-channel signal in an optical link or optical network
#38Optical pulse amplication apparatus and method
#39Multi-stage fiber amplifier to suppress Raman scattered light
#40Cascaded optical amplifier and control method thereof
#41Optimisation of the Number and Location of Regenerative or Non-Regenerative Repeaters in Wavelength Division Multiplex Optical Communication Links
#42Submarine optical transmission systems having optical amplifiers of unitary design
#43Optical amplifier pre-emphasis and equalization method and optical communications system incorporating same
#44Optical transmission systems including optical amplifiers and methods of use therein
#45Optical amplifier
#46Optical transmission systems including optical amplifiers and methods of use therein
#47Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio
#48System and method for managing system margin
#49Dispersion compensating method and dispersion compensating apparatus
#50Very high power pulsed fiber laser
#51Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio
#52Configuring optical launch powers in optical fiber transmission lines
#53Network management system for an optical network
#54Automated optical link power control
#55Method and apparatus for identifying pump failures using an optical line interface
#56Method for preemphasising an optical multiplex signal
#57Optical transmission systems including optical amplifiers and methods of use therein
#58Dispersion compensating method and dispersion compensating apparatus
#59Optical amplification system for variable span length WDM optical communication systems
#60Optical transmission system including repeatered and unrepeatered segments
#61Optical transmission system employing erbium-doped optical amplifiers and Raman amplifiers
#62Constraint-based design of optical transmission systems
#63Device for canceling the wavelength dependence of the nonlinearity coefficient of microstructured fibers
#64Method for gain equalization, and device and system for use in carrying out the method
#65Optical transmission systems including signal varying devices and methods
#66Communication system and method of sensor-based optical alignment between optical nodes
#67Semiconductor optical amplifier with asymmetric Mach-Zehnder interferometers