K. Nakagawa

Measuring the frequency of a Sr optical lattice clock using a 120 km coherent optical transfer.

H. Inaba, M. Takamoto, F. Hong, 2008, Optics letters.

Frequency measurement of a Sr optical lattice clock using a coherent optical link over a 120-km fiber

H. Inaba, M. Takamoto, F. Hong, 2009, 2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum electronics and Laser Science Conference.

Optical frequency standard at 1.3 /spl mu/m and 659 nm based on an iodine-stabilized Nd:YAG laser

F. Hong, A. Onae, T. Kurosu, 2002, Conference Digest Conference on Precision Electromagnetic Measurements.

Accurate Frequency Atlas of 1.5 μm Band of Acetylene Measured by a Mode-Locked Fiber Laser

K. Okumura, H. Matsumoto, F. Hong, 2004, 2004 Conference on Precision Electromagnetic Measurements.

Robust and precise length stabilization of a 25-km long optical fiber using an optical interferometric method with a digital phase-frequency discriminator

Akitoshi Ueda, Ken'ichi Nakagawa, Mitsuru Musha, 2006 .

Robust and precise length correction of 25-km fiber for distribution of local oscillator

M. Ishiguro, M. Musha, Y. Sato, 2005, Digest of the LEOS Summer Topical Meetings, 2005..

Frequency response of rotating shape defect in 2-D photonic crystal for optical tunable filter

K. Nakagawa, K. Takano, T. Sugano, 2001, LEOS 2001. 14th Annual Meeting of the IEEE Lasers and Electro-Optics Society (Cat. No.01CH37242).