Title :
1480-1510 nm-band Tm doped fiber amplifier (TDFA) with a high power conversion efficiency of 42 %
Author :
Aozasa, S. ; Masuda, H. ; Ono, H. ; Sakamoto, T. ; Kanamori, T. ; Ohishi, Y. ; Shimizu, M.
Author_Institution :
NTT Photonics Labs., NTT Electron. Corp., Ibaraki, Japan
Abstract :
The highest reported power conversion efficiency of 42 % has been achieved using a high Tm/sup 3+/ concentration doped fluoride fiber amplifier with one color 1.4 /spl mu/m pumping and a double pass configuration for S-band amplification. We achieved gains exceeding 26 dB and NFs of less than 7 dB in the 1480 to 1510 nm wavelength region (30 nm bandwidth). Furthermore, an 8 /spl times/ 10 Gb/s transmission experiment clarified that there was no excess noise generated in our proposed gain-shifted GS-TDFAs.
Keywords :
laser transitions; optical fibre amplifiers; optical pumping; optical transmitters; thulium; 1.4 micron; 10 Gbit/s; 1480 to 1510 nm; 26 dB; 42 percent; NF; S-band amplification; TDFA; Tm doped fiber amplifier; bandwidth; double pass configuration; excess noise; gain-shifted TDFA; gains; high Tm/sup 3+/ concentration doped fluoride fiber amplifier; high power conversion efficiency; one color 1.4 /spl mu/m pumping; Doped fiber amplifiers; Gain measurement; High power amplifiers; Laboratories; Mirrors; Noise measurement; Photonics; Power conversion; Probes; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2001. OFC 2001
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-55752-655-9
