| 发明名称 |
|
| 摘要 |
<p>1407227 Lasers SIEMENS AG 19 Sept 1972 [24 Sept 1971] 43306/72 Heading H1C Light signals in an optical waveguide forming part of a telecommunications system are amplified by a semiconductor laser. Fig. 1 shows a diode laser amplifier body 9 matched to two optical fibres 5 by epoxy resin couplers 8. The diode and the fibres are clad with materials 10 and 6 respectively of lower refractive index. The diode pumping current is supplied by leads 11, 12, and the assembly is adhered to a body 1 by layer 2. The diode faces may be made non- parallel to prevent oscillation, Fig. 2 (not shown), or may be provided with reflectors to give multiple or zig-zag paths through the gain region, Figs. 3, 4 (not shown). In Fig. 5 the active medium 18 has a region 17 adjacent the waveguide fibre and amplifies surface light emitted from the fibre; the amplified light couples back into the fibre. This embodiment avoids reflections back along the fibre since the fibre is continuous. This device may be made on a carrier body by first forming the laser then vapour depositing the associated parts of the waveguide. The amplifier dimensions preferably restrict operation to a single mode. Pumping may alternatively be by one or more luminescent or laser diodes.</p> |
| 申请公布号 |
DE2147842(B2) |
申请公布日期 |
1980.01.17 |
| 申请号 |
DE19712147842 |
申请日期 |
1971.09.24 |
| 申请人 |
SIEMENS AG, 1000 BERLIN UND 8000 MUENCHEN |
发明人 |
ZEIDLER, GUENTER, DIPL.-ING., 8000 MUENCHEN |
| 分类号 |
G02B6/00;G02B6/12;H01S3/06;H01S3/063;H01S3/23;H01S5/00;H01S5/50;H04B10/291;(IPC1-7):01S3/19;02B5/14 |
主分类号 |
G02B6/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
