In QC lasers, it is possible to obtain different output signal wavelengths. This can be achieved by

Related MCQs

• Injection lasers operating in smaller wavelengths are subjected to increased carrier losses. State whether the following statement is true or false?
• ________ couplers combine the different wavelength optical signal onto the fiber or separate the different wavelength optical signal output from the fiber.
• Rayleigh scattering can be reduced by operating at smallest possible wavelengths. State whether the following statement is true or false.
• Line-width narrowing is achieved in DFB lasers by a strategy referred as _______________
• The beating between light at different frequencies or wavelengths in multichannel fiber transmission causes
• Intensity of output from semiconductor injection lasers leading to optical intensity noise is due to
• In optical fiber communication, the electrical signal dropping to half its constant value due to modulated portion of optical signal corresponds to _______
• A _____________ coupler comprises a number of cascaded stages, each incorporating three or four-port FBT couplers to obtain a multiport output.
•  ____________________ lasers are presently the major laser source for optical fiber communications
• In Nd: YAG lasers, the maximum doping levels of neodymium is ____________