Title:
APPARATUS FOR GENERATING MULTIPLE WAVELENGTHS
Document Type and Number:
Japanese Patent JP3727529
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To generate optical signals of multiple wavelengths necessary for wavelength multiplex transmission with an inexpensive constitution by using a method of combining simple sine wave modulations.
SOLUTION: The output of a light source 1 which emits a light beam of a single wavelength is bisected to apply angle modulations of a different modulation index to the divided respective light beams by using the modulating signal of a sine wave or a cosine wave having the same frequency. The polarization planes of both light beams having mutually different modulation indexes are orthogonalized and multiplexed.
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Inventors:
Masaki Amemiya
Masamitsu Fujiwara
Mitsuhiro Teshima
Katsumi Iwatsuki
Masamitsu Fujiwara
Mitsuhiro Teshima
Katsumi Iwatsuki
Application Number:
JP2000350132A
Publication Date:
December 14, 2005
Filing Date:
November 16, 2000
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G02F1/035; G02F2/02; H04B10/25; H04B10/516; H04B10/548; H04B10/588; H04B10/61; H04J14/00; H04J14/02; (IPC1-7): G02F2/02; G02F1/035; H04B10/04; H04B10/06; H04B10/142; H04B10/152; H04J14/00; H04J14/02
Domestic Patent References:
| JP2166426A | ||||
| JP8166610A |
Other References:
J.J. Veselka, et al.,A Multiwavelength Source Having Precise Channel Spacing for WDM Systems ,Photonics Technology Letters ,米国,IEEE,1998年 7月,Vol.10, No.7 ,p.958-960
B. Widiyatomoko, et al.,Linking Two Optical Frequency Combs by Heterodyne Optical Phase Locking Between Diode Lasers at 2.6-,Photonics Technology Letters,米国,IEEE,1999年 4月,Vol.11, No.4,P.460-462
B. Widiyatomoko, et al.,Linking Two Optical Frequency Combs by Heterodyne Optical Phase Locking Between Diode Lasers at 2.6-,Photonics Technology Letters,米国,IEEE,1999年 4月,Vol.11, No.4,P.460-462
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe
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