KR970077971A - An optical amplifier having a planarized dynamic gain - Google Patents
An optical amplifier having a planarized dynamic gain Download PDFInfo
- Publication number
- KR970077971A KR970077971A KR1019960017208A KR19960017208A KR970077971A KR 970077971 A KR970077971 A KR 970077971A KR 1019960017208 A KR1019960017208 A KR 1019960017208A KR 19960017208 A KR19960017208 A KR 19960017208A KR 970077971 A KR970077971 A KR 970077971A
- Authority
- KR
- South Korea
- Prior art keywords
- gain medium
- optical fiber
- gain
- optical amplifier
- erbium doped
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06754—Fibre amplifiers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/1601—Solid materials characterised by an active (lasing) ion
- H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
- H01S3/1608—Solid materials characterised by an active (lasing) ion rare earth erbium
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
본 발명은 반사코팅 또는 반사형 광섬유 격자에 의해 평탄화된 동적이득을 갖는 광증폭기에 관한 것으로서, 신호광과 펌프광을 결합시키는 파장선택 결합기 ; 대략 1%의 알루미늄을 갖는 알루미노-저매노 실리게이트어븀 도핑 광섬유이고, 끝면이 반사 코팅되거나 반사형 광섬유 격자로 이루어진 이득매체 ; 및 반사된 신호광이 이득매체를 통과하여 최종 증폭된 신호를 입력되는 신호와 분리하는 광분리기를 포함함을 특징으로 한다.The present invention relates to an optical amplifier having a dynamic gain flattened by a reflective coating or a reflective optical fiber grating, comprising: a wavelength selective coupler coupling signal and pump light; A gain medium comprising an alumino-low-mannosilicate erbium doped optical fiber having approximately 1% aluminum and having an end facet coated with a reflective coating or a reflective optical fiber grating; And a light separator for separating the finally amplified signal from the input signal by passing the reflected signal light through the gain medium.
본 발명에 의하면, 특별한 조성을 갖는 이득매체를 사용하므로써 동작 조건의 변화에 대해서도 이득 곡선이 일정하게 되고, 상기 이득매체의 끝면과 끝단을 반사코팅하거나 반사형 광섬유 격자를 사용하므로써 이득 곡선이 평탄화되어 EDFA 동작대역을 넓히고, 필터를 사용하지 않으므로 EDFA의 소형화 및 안정화를 이룰 수 있다.According to the present invention, by using a gain medium having a specific composition, the gain curve is constant with respect to changes in operating conditions, and the gain curve is flattened by using a reflection-type optical fiber grating or reflection coating of the end surface and the end of the gain medium, Since the operating band is widened and the filter is not used, miniaturization and stabilization of the EDFA can be achieved.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제 1 도는 특별한 조성을 가지면서 끝면이 반사코팅된 이득매체를 갖는 본 발명에 따른 평탄화된 동적 이득을 갖는 EDFA의 구조를 도시한 것이다. 제 2 도는 특별한 조성을 가지면서 끝면이 반사광 격자로 된 이득매체를 갖는 본 발명에 따른 평탄화된 동적 이득을 갖는 EDFA의 구조를 도시한 것이다.FIG. 1 illustrates the structure of an EDFA having a planarized dynamic gain according to the present invention having a gain medium with a specific surface and a reflective coating on the end face. FIG. 2 shows a structure of an EDFA having a planarized dynamic gain according to the present invention having a gain medium having a reflection surface with a specific surface and an end surface as a reflection light grating.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960017208A KR0181420B1 (en) | 1996-05-21 | 1996-05-21 | Optical amplifier having uniform kinetic gain |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960017208A KR0181420B1 (en) | 1996-05-21 | 1996-05-21 | Optical amplifier having uniform kinetic gain |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970077971A true KR970077971A (en) | 1997-12-12 |
KR0181420B1 KR0181420B1 (en) | 1999-05-15 |
Family
ID=19459340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960017208A KR0181420B1 (en) | 1996-05-21 | 1996-05-21 | Optical amplifier having uniform kinetic gain |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0181420B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100304361B1 (en) * | 1998-10-13 | 2002-07-18 | 오길록 | Planar wave guide and method for forming optical device by using the same |
-
1996
- 1996-05-21 KR KR1019960017208A patent/KR0181420B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100304361B1 (en) * | 1998-10-13 | 2002-07-18 | 오길록 | Planar wave guide and method for forming optical device by using the same |
Also Published As
Publication number | Publication date |
---|---|
KR0181420B1 (en) | 1999-05-15 |
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