L. Ma

Optical Fiber Amplifier Employing a Bundle of Reduced Cladding Erbium-Doped Fibers

K. Tsujikawa, N. Hanzawa, H. Ono, 2012, IEEE Photonics Technology Letters.

Cord identification technique for ultra-low bending loss fibers using higher order modes of visible light

K. Tsujikawa, Y. Azuma, S. Aozasa, 2013 .

Launch device using endlessly single-mode PCF for ultra-wideband WDM transmission in graded-index multi-mode fiber.

Yuji Azuma, Kyozo Tsujikawa, Nobutomo Hanzawa, 2012, Optics express.