Organic Semiconductor Lasers and Optical Amplifiers
Lecture Note - QMMRC
Lecture Note - QMMRC
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Tuning of Laser Emission<br />
• Laser wavelength tuned by<br />
translating the substrate<br />
635<br />
• Stopb<strong>and</strong> wavelength changes<br />
linearly with grating period<br />
• Laser emission on b<strong>and</strong> edge<br />
~4nm longer in wavelength<br />
Wavelength (nm)<br />
630<br />
625<br />
620<br />
615<br />
610<br />
Laser Emission<br />
Bragg Dip<br />
Theory<br />
• 20 nm tuning range using a<br />
single substrate (1 mm<br />
translation)<br />
605<br />
390 395 400 405 410 415 420<br />
Grating Period (nm)
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