Title :
Novel laser fusion processes of fabricating low-loss S-band WDM narrowband coupler devices overcome H2O resonant absorption
Author :
Xu Liu ; Sidick, E. ; Brewer, Tony ; Chon, J. ; Liang, Futian
Author_Institution :
Wavesplitter Technol. Inc., Fremont, CA, USA
Abstract :
In this paper, we have demonstrated low loss, narrowband and broad FSR WDM couplers made by laser fusion processes to overcome the water absorption loss. Insertion loss as low as 0.5 dB was measured at 1380 nm resonant wavelength for SMF-28 fiber. Preliminary analyses indicate insertion loss as low as 0.1-0.2 dB is very feasible and will be presented at the conference. Methodology and results for very high pump power testing are discussed. These all-fiber fused couplers capable of handling 11 watts of pump power and 2000 hours of high temperature and high power were demonstrated. Combing the low loss, high power, broad FSR, narrowband channel spacing, and high reliability, laser fusion WDM couplers can meet the most stringent optical amplifier applications.
Keywords :
laser materials processing; life testing; optical communication equipment; optical fibre couplers; optical fibre fabrication; optical fibre losses; optical fibre testing; optical pumping; telecommunication network reliability; wavelength division multiplexing; 0.1 to 0.2 dB; 0.5 dB; 11 W; 1380 nm; 2000 h; H2O; all-fiber fused couplers; high power; high pump power testing; high reliability; high temperature; insertion loss; laser fusion WDM couplers; laser fusion processes; low loss; narrowband broad FSR WDM couplers; narrowband channel spacing; pump power; resonant wavelength; stringent optical amplifier applications; water absorption loss; Absorption; Fiber lasers; Insertion loss; Laser fusion; Loss measurement; Narrowband; Optical coupling; Resonance; Wavelength division multiplexing; Wavelength measurement;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036242
