Title :
All-optical clock recovery and dynamics using mode-locked semiconductor lasers
Author :
Mathason, B.K. ; Delfyett, P.J. ; Alphonse, G.A. ; Connolly, J.C.
Author_Institution :
Center for Res. & Educ. in Opt. & Lasers, Central Florida Univ., Orlando, FL, USA
Abstract :
Summary form only given. Ultrafast timing and clocking control is of critical importance in high-speed optical time-domain multiplexed (OTDM) networks. Key figures of merit for all-optical clock recovery are: 1) a low injection power; 2) an immunity to long bit patterns containing primarily logical zeros; 3) insensitivity to detuning between the clock rate and data rate; and 4) capability for data rate conversion. In this paper, we present results on the dynamics of all-optical clock recovery using passively mode-locked semiconductor lasers. Clock recovery with 3 microwatts injection power, a fractional locking bandwidth of 3/spl times/10/sup -3/, immunity to bit patterns of 2/sup 50/-1, and a 3:1 data to clock rate conversion is achieved. These results show the potential of passively mode-locked diode lasers as clock recovery oscillators for ultrahigh-speed OTDM networks.
Keywords :
digital communication; high-speed optical techniques; laser beam applications; laser mode locking; optical fibre networks; semiconductor lasers; time division multiplexing; timing; 3 muW; clock recovery oscillators; data rate conversion capability; diode lasers; dynamics; mode-locked semiconductor lasers; optical TDM; optical clock recovery; optical time-domain multiplexed networks; passively mode-locking; ultrafast clocking control; ultrafast timing; ultrahigh-speed OTDM networks; Bandwidth; Clocks; High speed optical techniques; Laser mode locking; Optical control; Optical fiber networks; Semiconductor lasers; Time domain analysis; Timing; Ultrafast optics;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 1998. OFC '98., Technical Digest
Conference_Location :
San Jose, CA, USA
Print_ISBN :
1-55752-521-8
DOI :
10.1109/OFC.1998.657322
