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Continuously tunable external-cavity diode laser with a double-grating arrangement.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wandt, Dieter Laschek, M. Tünnermann, Andreas Welling, Herbert |
| Copyright Year | 1997 |
| Abstract | A new external-cavity diode laser system based on an extended version of the Littman configuration is investigated. In our laser system the tuning mirror is replaced with a second grating mounted at the Littrow angle. This double-grating design provides a smaller passive bandwidth than the grating-mirror configuration, which is used to compensate for the large angle-of-incidence-dependent losses of the grazing-incidence grating. This results in a broader continuous tuning range with an improved mode stability. Because two laser diodes, emitting at 820 and 775 nm, respectively, are used, the external-cavity laser is continuously tunable without mode hops across 35 nm at 820 nm and 27 nm at 775 nm. Such a laser was used to measure the absorption lines of the oxygen A band around 762 nm. The complete R - and P -rotational branches of the b summation operator(g)(1) (+)(nu(??)=0)?X (3) summation operator(g)(-)(nu (?)=0) transition were recorded in a single-wavelength scan. |
| File Format | PDF HTM / HTML |
| DOI | 10.1364/OL.22.000390 |
| Alternate Webpage(s) | https://www.holographyforum.org/data/pdf/aa-Collection_a_k/aa-Laser/aa_ECDL/aa_Joe/continuously.pdf |
| PubMed reference number | 18183211 |
| Alternate Webpage(s) | https://doi.org/10.1364/OL.22.000390 |
| Journal | Medline |
| Volume Number | 22 |
| Issue Number | 6 |
| Journal | Optics letters |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
