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 Results 1 - 15 of 15  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
OFT 2015-10-23
Mie Mie Univ. All-Fiber Single-Channel Bandpass Filters Formed by a High Attenuation Fiber Placed between Long-Period Fiber Gratings
Fatemeh Abrishamian, Katsumi Morishita (Osaka Eectro-Comm. Univ.) OFT2015-35
We proposed and demonstrated all-fiber single-channel bandpass filters that employed a high attenuation metal-doped fibe... [more] OFT2015-35
OFT 2014-10-23
Hyogo   Widening the Rejection Bands of Long-Period Fiber Gratings by Cascade Connection of a π-Phase Shift
Fatemeh Abrishamian, Katsumi Morishita (Osaka Eectro-Comm. Univ.) OFT2014-23
A novel method was developed to expand and adjust the bandwidth of long-period fiber gratings (LPFGs) as band-rejection ... [more] OFT2014-23
Hokkaido   Resonance Wavelength Fluctuations Caused by Different Discharge Conditions in Long-Period Fiber Gratings Fabricated by a Point-by-Point Arc Discharge Technique
Katsumi Morishita, Yuya Yamamoto (Osaka Electro-Comm. Univ.) OFT2013-15
Resonance wavelength fluctuations in long-period fiber gratings (LPFGs) cause a major issue for the design and productio... [more] OFT2013-15
Hokkaido   Refractive Index Profile Changes Caused by Arc Discharge in Arc-Induced Long-Period Fiber Gratings
Fatemeh Abrishamian (Osaka Electro-Comm. Univ.), Nicoleta Dragomir (Victoria Univ.), Katsumi Morishita (Osaka Electro-Comm. Univ.) OFT2012-25
Long-period fiber gratings were inscribed in a commercial silica fiber by a point-by-point arc discharge technique with ... [more] OFT2012-25
OFT 2012-01-19
Kagawa   A Transfer-Matrix Method for Analyzing Non-uniform Co-directional Fiber Grating Couplers and Comparison between Measured and Calculated Transmission Spectra
Fatemeh Abrishamian, Katsumi Morishita (Osaka Electro-Comm. Univ.) OFT2011-63
A simple and efficient transfer-matrix method based on a discrete coupling model is presented to analyze uniform and non... [more] OFT2011-63
OFT 2011-01-27
Nagasaki   An Experimental Study on Wavelength and Polarization Dependences of Fused Fiber Couplers
Katsumi Morishita, Kazunori Yamazaki (Osaka Electro-Comm. Univ.) OFT2010-51
Fused fiber couplers were fabricated by controlling the coupler waist profile, and the wavelength and the polarization d... [more] OFT2010-51
OFT 2011-01-27
Nagasaki   Resonance Wavelength Shifts and Refractive Index Profile Changes Caused by Heating the Long-Period Fiber Grating
Fatemeh Abrishamian, Katsumi Morishita (Osaka Electro-Comm. Univ.) OFT2010-52
A silica fiber and long-period gratings written in it were heated to clarify the effect of the glass structure and the r... [more] OFT2010-52
OFT 2010-10-25
Saitama Nippon Institute of Technology [Special Invited Talk] Researches on Fiber Optics and Fiber-Based Optical Devices
Katsumi Morishita (Osaka Electro-Comm. Univ.) OFT2010-31
The author has been doing original researches in the fields of fiber optics and fiber-based optical devices. This paper ... [more] OFT2010-31
OFT 2009-10-30
Oita   Changes in Polarization and Wavelength Dependences of Fused Fiber Couplers Induced by the Cross Sectional Shape of the Coupling Region
Makoto Kawabata, Kazunori Yamazaki, Katsumi Morishita (Osaka Electro-Comm. Univ.) OFT2009-50
Fused fiber couplers with different cross sectional shapes were fabricated, and the polarization and wavelength dependen... [more] OFT2009-50
OFT 2009-10-30
Oita   Expanding Blue Shift on Post-Fabrication Resonance Wavelength Adjustment of Long-Period Fiber Gratings by Heating
Fatemeh Abrishamian, Katsumi Morishita (Osaka Electro-Comm. Univ.) OFT2009-51
The adjustable range of resonance wavelengths of long-period fiber gratings was broadened toward the blue wavelength sid... [more] OFT2009-51
OFT 2008-05-15
Osaka   Influence of Heating Temperature on Adjusting Resonance Wavelengths of Long-Period Fiber Gratings by Heating
Katsumi Morishita, Eijun Hirao (Osaka Electro-Communication Univ) OFT2008-5
It was shown that resonance wavelengths of long-period gratings written in silica fibers by the glass structure change w... [more] OFT2008-5
EMT, LQE, OPE, PN 2008-01-28
Osaka   [Invited Talk] The Glass Structure Change -- Its Application to Fabricating Fiber-Based Devices and Modifying Their Properties --
Katsumi Morishita (Osaka Electro-Comm. Univ.) PN2007-43 OPE2007-151 LQE2007-129
Changing the refractive index locally is a very important technique for fabricating optical devices and modifying their ... [more] PN2007-43 OPE2007-151 LQE2007-129
Hokkaido   A Method Based on the Glass Structure Change to Make Fused Fiber Couplers Wavelength-Insensitive
Katsumi Morishita, Nobuyuki Ohta (Osaka Electro-Comm. Univ.) OFT2007-25
A method based on the glass structure change is proposed to provide wavelength-insensitive coupling for fused fiber coup... [more] OFT2007-25
OFT 2006-05-12
Fukuoka KYUSHU UNIVERSITY Residual Stress Effects on Adjusting Optical Properties of Long-Period Fiber Gratings by Heating
Katsumi Morishita, Akihiro Kaino (Osaka Electro-Comm. Univ.) OFT2006-15
Long-period gratings are written in the fibers un-relaxed and relaxed the residual stress. The residual stress effects ... [more] OFT2006-15
OCS, OFT 2004-08-27
Hokkaido Muroran Institute of Technology Resonance Wavelength Adjustment of Long-Period Fiber Gratings by the Glass Structure Change Induced by Heating
Katsumi Morishita, Akihiro Kaino (Osaka Electro-Comm. Univ.)
Long-period fiber gratings written by arc discharge are heated at different temperatures, and the post-heating changes o... [more] OCS2004-69 OFT2004-32
 Results 1 - 15 of 15  /   
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