"A" cited "B".



"A"

L. Eldada (Telephotonics Inc. MA, USA), "Telecom optical componentry: past, present, future," Fiber Optic Components, Subsystems, and Systems for Telecommunications, International Symposium on Optoelectronics and Microelectronics, Proc. SPIE, vol. 4604, pp. 1-15, Nanjing, China, Nov. 2001 (Keynote paper).



"B"

Y. Jeong, B. Yang, B. Lee, H. S. Seo, S. Choi, and K. Oh, "Electrically controllable long-period liquid crystal fiber gratings," IEEE Photonics Technology Letters, vol. 12, no. 5, pp. 519-521, 2000.