'A'
Frequency Tunable, Single Passband, Photonic Microwave Transversal Filter Incorporating Differential Group Delay Device-Based Comb Filter
Author(s): Chang YM (Chang, You Min)1, Lee JH (Lee, Ju Han)2  
Source: JAPANESE JOURNAL OF APPLIED PHYSICS    Volume: 48    Issue: 1  Article Number: 012501    Published: JAN 2009    
Addresses:
1. FST Co, R&D Ctr, Hwasung 445813, Gyeonggi Do South Korea
2. Univ Seoul, Sch Elect & Comp Engn, Seoul 130743, South Korea

'B'
Polarization-independent tunable fiber comb filter
Author(s): Lee YW, Han KJ, Jung J, Lee B  
Source: IEEE PHOTONICS TECHNOLOGY LETTERS    Volume: 16    Issue: 9    Pages: 2066-2068    Published: SEP 2004