'A'
Fiber laser thermally tunable by a filter composed of two Sagnac interferometers
Author(s): Huixtiaca-Cuatecatl I (Huixtiaca-Cuatecatl, Isaac), Beltran-Perez G (Beltran-Perez, Georgina), Castillo-Mixoatl J (Castillo-Mixoatl, Juan), Munoz-Aguirre S (Munoz-Aguirre, Severino)  
Source: IEEE JOURNAL OF QUANTUM ELECTRONICS    Volume: 44    Issue: 1-2    Pages: 49-55    Published: 2008  
Authors' address:
Univ Autonoma Puebla, Fac Ciencias Fis Matemat Benemerita, Puebla 72570, Mexico

'B'
Polarization-independent all-fiber multiwavelength-switchable filter based on a polarization-diversity loop configuration
Author(s): Lee YW, Han KJ, Lee B, Jung JH  
Source: OPTICS EXPRESS    Volume: 11    Issue: 25    Pages: 3359-3364    Published: 2003