Abstract
Embodiments of a method and apparatus for tunable wavelength
conversion using a Bragg grating and a gain medium
disposed in a semiconductor substrate are disclosed herein.
In one embodiment, an input optical signal corresponding to
a first wavelength and modulated with a data component
may be directed into the gain medium (e.g., a quantum
cascade intersubband laser) to cause emission of light of at
least one wavelength distinct from the first wavelength and
modulated with the data component of the input optical
signal. At least a portion of the emitted light may then be
reflected from the tunable Bragg grating to cause stimulated
emission of the selected Bragg wavelength, thereby generating
an output optical signal corresponding to a wavelength
distinct from the first wavelength, and modulated v.rith the
data component of the input optical signal.
conversion using a Bragg grating and a gain medium
disposed in a semiconductor substrate are disclosed herein.
In one embodiment, an input optical signal corresponding to
a first wavelength and modulated with a data component
may be directed into the gain medium (e.g., a quantum
cascade intersubband laser) to cause emission of light of at
least one wavelength distinct from the first wavelength and
modulated with the data component of the input optical
signal. At least a portion of the emitted light may then be
reflected from the tunable Bragg grating to cause stimulated
emission of the selected Bragg wavelength, thereby generating
an output optical signal corresponding to a wavelength
distinct from the first wavelength, and modulated v.rith the
data component of the input optical signal.
| Original language | English |
|---|---|
| Patent number | US, 9078052 |
| Priority date | 16/01/14 |
| Publication status | Accepted/In press - 7 Jul 2015 |