RU97112914A - INJECTION LASER - Google Patents
INJECTION LASERInfo
- Publication number
- RU97112914A RU97112914A RU97112914/25A RU97112914A RU97112914A RU 97112914 A RU97112914 A RU 97112914A RU 97112914/25 A RU97112914/25 A RU 97112914/25A RU 97112914 A RU97112914 A RU 97112914A RU 97112914 A RU97112914 A RU 97112914A
- Authority
- RU
- Russia
- Prior art keywords
- optical
- output
- eff
- length
- radiation output
- Prior art date
Links
- 238000002347 injection Methods 0.000 title claims 2
- 239000007924 injection Substances 0.000 title claims 2
- 230000003287 optical Effects 0.000 claims 27
- 239000011248 coating agent Substances 0.000 claims 6
- 238000000576 coating method Methods 0.000 claims 6
- 238000010521 absorption reaction Methods 0.000 claims 3
- 239000000758 substrate Substances 0.000 claims 2
- 230000003667 anti-reflective Effects 0.000 claims 1
- 239000000470 constituent Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 claims 1
Claims (1)
при nэфф min больше nmin,
где nэфф min - минимальное значение nэфф из всех возможных nэфф для представляющих практическую ценности множества лазерных гетероструктур с областями вывода излучения;
nmin - наименьший из показателей преломления nIi, nIIj
2. Устройство по п. 1, отличающееся тем, что область вывода излучения выполнена из полупроводникового материала с шириной запрещенной зоны EОВ, эВ, не превышающей Ea.1. An injection laser comprising a substrate and a laser heterostructure containing an active layer with a refractive index of n a and a band gap of E a , eV, and two sets of layers I i and II j , where i = 1,2, . . .k and j = 1,2 ... m are defined as integers that mean the sequence number of the layers, calculated from the active layer, respectively, with refractive indices n Ii and n IIj less than n a , each containing at least one a layer placed respectively on the first and opposite second surfaces of the active layer, as well as an active region of width W AO , μm, reflectors, an optical resonator of length L OP , μm, ohmic contacts, barrier regions, radiation output means with an output surface, coatings with a reflection coefficient close to one tse and antireflective, characterized in that the means of emission output is formed at least on one side of the active layer in the form of a plurality of layers and the output region transparent for the output laser radiation having a refractive index n effOV and with refractive indices parts n OVq where q = 1 , 2, ... v are defined as integers, the absorption coefficient of the output laser radiation α OB , cm -1 , thickness d OB , μm, width W OB , μm, not less than W AO , length along the axis of the optical resonator, determined through the length L OBB , μm, its internal over at the boundary with the laser heterostructure, chosen not less than the length L OP , and through the length L OBН , μm, its outer surface on the opposite side, and limited on the side of the optical reflector reflectors with optical faces directed along the tilt angle ψ relative to the plane perpendicular to the axis of the optical resonator, with the apex of the angle ψ located on the inner surface, while the combination consisting of a laser heterostructure and an attached radiation output region having an effective display the refractive index n eff and the radiation output region are characterized by the following ratios of refractive indices n eff and n ОВ , length L OP of thickness d ОВ :
when n eff min is greater than n min ,
where n eff min is the minimum value of n eff of all possible n eff for the practical value of many laser heterostructures with radiation output regions;
n min is the smallest of the refractive indices n Ii , n IIj
2. The device according to claim 1, characterized in that the radiation output region is made of a semiconductor material with a band gap E ОВ , eV, not exceeding E a .
nэфф ≤ nОВ2 <nОВ1.7. The device according to claims 1 to 6, characterized in that the radiation output region is made of at least two layers with refractive indices n OB1 and n OB2 , and the layer with n OB1 is formed on the last layer of the population included in the radiation output means, and the refractive indices n eff , n OB1 and n OB2 satisfy the relation
n eff ≤ n OB2 <n OB1 .
15. Устройство по п.13, отличающееся тем, что обе плоскости оптической грани с выводящими поверхностями помещены под равными углами наклона ψ.14. The apparatus according to claim 13, characterized in that another optical facet rasplozhen plane perpendicular to the longitudinal axis of the optical cavity and formed thereon a reflective coating with a coefficient of reflection close to unity, and the thickness d OB output area selected at least
15. The device according to item 13, wherein both planes of the optical face with the output surfaces are placed at equal tilt angles ψ.
LOВВ • sin[arccos(nэфф/nОВ].16. The device according to PP.13 - 15, characterized in that the reflective coating with a reflection coefficient close to one is formed on one optical face placed at an angle of inclination ψ from the side of its boundary with the laser heterostructure at a distance equal to
L OBB • sin [arccos (n eff / n OB ].
19. Устройство по п.18, отличающееся тем, что на обеих оптических гранях с выводящими поверхностями, выполнены просветляющие покрытия, толщина dОВ выбрана не менее
20. Устройство по п. 18, отличающееся тем, что на одной из оптических граней выполнено отражающее покрытие с коэффициентом отражения близким к единице, на другой, с выводящей поверхностью, сформировано просветляющее покрытие, при этом толщина dОВ выбрана не менее
21. Устройство по пп.1 - 12, отличающееся тем, что по крайней мере одна плоскость оптической грани выполнена под углом наклона ψ, выбираемом в диапазоне
при этом длина LOВВ выбрана менее длины LOВН, а выводящая поверхность с выполненными на ней просветляющими покрытиями размещена на наружной поверхности области вывода.18. The device according to claims 1 to 12, characterized in that the planes of the optical faces are perpendicular to the axis of the optical resonator, with the length L ОВВ selected equal to the length L ОВН , the output surface is placed on at least one optical face, and the laser heterostructure with attached the radiation output region is characterized by the following ratios of refractive indices n eff and n OB :
19. The device according to p. 18, characterized in that on both optical faces with the output surfaces, antireflection coatings are made, the thickness d OV is selected at least
20. The device according to p. 18, characterized in that on one of the optical faces a reflective coating is made with a reflection coefficient close to unity, on the other, with an output surface, an antireflection coating is formed, while the thickness d OV is selected at least
21. The device according to claims 1 to 12, characterized in that at least one plane of the optical face is made at an inclination angle ψ, selected in the range
wherein the length L OBB is chosen less than the length L OBH , and the output surface with the antireflection coatings made on it is placed on the outer surface of the output area.
23. Устройство по п.21, отличающееся тем, что плоскости обеих оптических граней помещены под углом наклона ψ, а толщина dОВ выбрана не менее
24. Устройство по пп.13, 21, 22, 23, отличающееся тем, что угол наклона ψ оптической грани выбран равным
25. Устройство по пп. 23 и 24, отличающееся тем, что на наружной поверхности области вывода на площади проекции одной из оптических граней сформировано отражающее покрытие с коэффициентом близким к единице.22. The device according to p. 21, characterized in that the other plane of the optical face is perpendicular to the longitudinal axis of the optical resonator, and the thickness d OV is selected at least
23. The device according to item 21, characterized in that the planes of both optical faces are placed at an angle of inclination ψ, and the thickness d OV is selected at least
24. The device according to PP.13, 21, 22, 23, characterized in that the tilt angle ψ of the optical face is chosen equal
25. The device according to paragraphs. 23 and 24, characterized in that on the outer surface of the output region on the projection area of one of the optical faces, a reflective coating is formed with a coefficient close to unity.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU97112914/25A RU2133534C1 (en) | 1997-08-08 | 1997-08-08 | Injection laser |
AU90114/98A AU9011498A (en) | 1997-08-08 | 1998-08-06 | Injection laser |
PCT/RU1998/000258 WO1999008352A1 (en) | 1997-08-08 | 1998-08-06 | Injection laser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU97112914/25A RU2133534C1 (en) | 1997-08-08 | 1997-08-08 | Injection laser |
Publications (2)
Publication Number | Publication Date |
---|---|
RU97112914A true RU97112914A (en) | 1999-06-10 |
RU2133534C1 RU2133534C1 (en) | 1999-07-20 |
Family
ID=20195753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU97112914/25A RU2133534C1 (en) | 1997-08-08 | 1997-08-08 | Injection laser |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU9011498A (en) |
RU (1) | RU2133534C1 (en) |
WO (1) | WO1999008352A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2134007C1 (en) | 1998-03-12 | 1999-07-27 | Государственное предприятие Научно-исследовательский институт "Полюс" | Semiconductor optical amplifier |
RU2142665C1 (en) | 1998-08-10 | 1999-12-10 | Швейкин Василий Иванович | Injection laser |
RU2142661C1 (en) | 1998-12-29 | 1999-12-10 | Швейкин Василий Иванович | Injection non-coherent light source |
WO2003071643A1 (en) * | 2002-02-18 | 2003-08-28 | Ot´Kratoe Aktsyonernoe Obshchestvo ¨Sistema-Venchur¨ | Heterostructure injection laser, semiconductor amplifying element and semiconductor optical amplifier |
JP2006518548A (en) * | 2003-02-19 | 2006-08-10 | ピービーシー レーザーズ リミテッド | Apparatus and method for frequency conversion |
WO2007100341A2 (en) * | 2005-04-29 | 2007-09-07 | Massachusetts Institute Of Technology | Grazing incidence slab semiconductor laser system and method |
RU2539117C1 (en) * | 2013-10-09 | 2015-01-10 | Федеральное государственное бюджетное учреждение науки Физико-технический институт им. А.Ф. Иоффе Российский академии наук | Semiconductor amplifier of optical emission |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4063189A (en) * | 1976-04-08 | 1977-12-13 | Xerox Corporation | Leaky wave diode laser |
CA1137605A (en) * | 1979-01-15 | 1982-12-14 | Donald R. Scifres | High output power laser |
SU1359833A1 (en) * | 1984-07-20 | 1987-12-15 | Предприятие П/Я А-3726 | Injection laser |
FR2575870B1 (en) * | 1985-01-10 | 1987-01-30 | Sermage Bernard | SEMICONDUCTOR LASER PROVIDED WITH MEANS FOR REJECTING THE SPONTANEOUS EMISSION INTO THE ACTIVE LAYER |
US5101413A (en) * | 1991-05-10 | 1992-03-31 | Trw Inc. | Large-aperture light sources using resonant leaky-wave coupling |
US5537433A (en) * | 1993-07-22 | 1996-07-16 | Sharp Kabushiki Kaisha | Semiconductor light emitter |
-
1997
- 1997-08-08 RU RU97112914/25A patent/RU2133534C1/en not_active IP Right Cessation
-
1998
- 1998-08-06 WO PCT/RU1998/000258 patent/WO1999008352A1/en active Application Filing
- 1998-08-06 AU AU90114/98A patent/AU9011498A/en not_active Abandoned
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