Search Results - "Yoshiara, K"

Low noise photonic Millimeter-wave generation using an integrated reciprocating optical Modulator by Kawanishi, T., Oikawa, S., Yoshiara, K., Sakamoto, T., Shinada, S., Izutsu, M.

“…We generated low-phase-noise millimeter waves by using a reciprocating optical modulator. A lightwave modulated by a 44-GHz millimeter wave was obtained from a…”
Get full text

Design and Characteristics of Guardring-Free Planar AlInAs Avalanche Photodiodes by Yagyu, E., Ishimura, E., Nakaji, M., Ihara, S., Mikami, Y., Itamoto, H., Aoyagi, T., Yoshiara, K., Tokuda, Y.

“…This paper reports a guardring-free planar AlInAs avalanche photodiode (APD) for optical fiber communications. AlInAs APDs can achieve a larger gain-bandwidth…”
Get full text

Degradation Mode Analysis on Highly Reliable Guardring-Free Planar InAlAs Avalanche Photodiodes by Ishimura, E., Yagyu, E., Nakaji, M., Ihara, S., Yoshiara, K., Aoyagi, T., Tokuda, Y., Ishikawa, T.

“…This paper presents the high reliability of the guardring-free planar InAlAs avalanche photodiode (APD) and its degradation mode analysis. We have conducted…”
Get full text

Highly External Optical Feedback-Tolerant 1.49- \mu m Single-Mode Lasers With Partially Corrugated Gratings by Gotoda, M., Nishimura, T., Matsumoto, K., Aoyagi, T., Yoshiara, K.

“…An InGaAsP single-mode laser diode (LD) highly tolerant to optical feedback was realized utilizing a partially corrugated grating with a window-mirror…”
Get full text

Investigation of guardring-free planar AlInAs avalanche photodiodes by Yagyu, E., Ishimura, E., Nakaji, M., Aoyagi, T., Yoshiara, K., Tokuda, Y.

“…We analyze the operation principle and the characteristics of a guardring-free planar AlInAs avalanche photodiode (APD) by computational simulation and…”
Get full text

Tunable dispersion slope compensator with a chirped fiber grating and a divided thin-film heater for 160-Gb/s RZ transmissions by Matsumoto, S., Takabayashi, M., Yoshiara, K., Sugihara, T., Miyazaki, T., Kubota, F.

“…We have developed the tunable dispersion slope compensator with a chirped fiber grating and a divided thin-film heater composed of 32 thin-film heaters for…”
Get full text

Tunable dispersion equalizer with a divided thin-film heater for 40-Gb/s RZ transmissions by Matsumoto, S., Ohira, T., Takabayashi, M., Yoshiara, K., Sugihara, T.

“…We have developed tunable dispersion equalizers with a chirped fiber grating on the divided thin-film heater. The divided thin-film heater took an important…”
Get full text

Guardring-Free Planar AlInAs Avalanche Photodiodes for 2.5-Gb/s Receivers With High Sensitivity by Yagyu, E., Ishimura, E., Nakaji, M., Mikami, Y., Aoyagi, T., Yoshiara, K., Tokuda, Y.

“…We demonstrate a practical 2.5-Gb/s AlInAs avalanche photodiode (APD) and an AlInAs APD-based optical receiver with high sensitivity. The AlInAs APD has a…”
Get full text

Highly External Optical Feedback-Tolerant 1.49-[Formula Omitted] m Single-Mode Lasers With Partially Corrugated Gratings by Gotoda, M, Nishimura, T, Matsumoto, K, Aoyagi, T, Yoshiara, K

Get full text

Highly external optical feedback tolerant 1.49 μm single-mode lasers with partially corrugated gratings by Gotoda, M., Nishimura, T., Matsumoto, K., Aoyagi, T., Yoshiara, K.

“…A 1490 nm InGaAsP single-mode laser diode, with high endurance against external optical feedback, was realized utilizing an optimized partially corrugated…”
Get full text

Hall-effect studies of the mixed state of Y1-xPrxBa2Cu3O7- delta (0 <= x <= 0.42) and YBa2Cu3Oy (6.65 <= y <= 6.84) single crystals by Almasan, CC, Han, SH, Yoshiara, K, Buchgeister, M, Gajewski, DA, Paulius, LM, Herrmann, J, Maple, MB, Paulikas, AP, Gu, C, Veal, BW

Get full text

Integrated Reciprocating Optical Modulator for Optical High-Order Sideband Generation by Kawanishi, Tetsuya, Yoshiara, Kiichi, Oikawa, Satoshi, Shinada, Satoshi, Sakamoto, Takahide, Izutsu, Masayuki

“…We demonstrated optical high-order sideband generation using a reciprocating optical modulator consisting of a pair of fiber Bragg gratings and an optical…”
Get full text

320 GHz high-order sideband generation using reciprocating optical modulator by Kawanishi, T., Sakamoto, T., Shinada, S., Izutsu, M., Oikawa, S., Shimakura, Y., Yoshiara, K.

“…We demonstrated effective generation of high-order sideband components whose frequency deviation was 312 GHz by using a reciprocating optical modulator…”
Get full text

Recent Advances in AlInsAs Avalanche Photodiodes by Yagyu, E., Ishimura, E., Nakaji, M., Itamoto, H., Aoyagi, T., Yoshiara, K., Tokuda, Y.

“…We present practical planar AlInAs APDs, which have large gain-bandwidth products, low noise, and high reliability. The APD receivers had a sensitivity of-28.6…”
Get full text

Highly reliable guardring-free InAlAs avalanche photodiodes by Ishimura, E., Yagyu, E., Nakaji, M., Ihara, S., Itamoto, H., Yoshiara, K., Aoyagi, T., Ishikawa, T.

“…The InAlAs avalanche photodiodes that employ a guardring-free structure demonstrate record high reliability of over 10000 hours at a high temperature of…”
Get full text

New Lead-Based Cuprates With 1222 Structure Having No Tetravalent Ions, (Pb sub 0.5 Cu sub 0.5 )Sr sub 2--x Ln sub 2--y La sub x+y Cu sub 2 O sub z (Ln: Gd, Dy, Ho and Er) by Sasakura, H, Teraoka, H, Nakahigashi, K, Minamigawa, S, Yoshiara, K

“…New Pb-based cuprates with 1222 structure have been synthesized in (Pb sub 0.5 Cu sub 0.5 )Sr sub 2--x Ln sub 2--y La sub x+y Cu sub 2 O sub z (Ln: Gd, Dy, Ho…”
Get full text

Phase Transition of Y sub 2 BaCuO sub 5 by Nakahigashi, K, Yoshiara, K, Kogachi, M

“…Phase transition of Y sub 2 BaCuO sub 5 has been studied by X-ray diffraction, thermal gravimetric and differential thermal analyses. At temperatures higher…”
Get full text

Real-time monitoring and fast adaptive compensation of chromatic dispersion in a 40 Gbps optical cross-connect network by Hirota, Y, Takushima, Y, Matsumoto, S, Yoshiara, K

“…We develop a simple, accurate in-service dispersion monitor by using a dithered optical bandpass filter. We successfully demonstrate the adaptive dispersion…”
Get full text

Tunable dispersion compensator with twin chirped fiber gratings for polarization mode dispersion and chromatic dispersion by Yoshiara, K., Takabayashi, M., Matsumoto, S., Shimakura, Y., Sugihara, T.

“…We have developed new tunable dispersion compensators with twin chirped fiber gratings for polarization mode dispersion (PMD) and chromatic dispersion (CD),…”
Get full text

Extremely high reliability of guardring-free InAlAs avalanche photodiode by lshimura, E, Yagyu, E, Nakaji, M, lhara, S, Yoshiara, K, Aoyagi, T, Tokuda, Y, lshikawa, T

“…The InAIAs avalanche photodiode with a guardring free structure that reduces the bias voltage of the pn junction of top surface exhibits a record high…”
Get full text