Abstract
We present an integrated optoelectrode that can deliver multicolor light from a waveguide coupled to an optical mixer. Such a device can provide spatial precision and scalability needed to enable independent activation and silencing of local neural circuits, allowing study of brain activities such as memory consolidation networks in the hippocampus. We have demonstrated successful implementation of fiber-less optoelectrodes in a highly compact form by achieving efficient end-fire coupling between a side-emitting injection laser diode (ILD) and a dielectric channel waveguide via a Gradient-index (GRIN) lens. Total optical efficiency achieved for 405nm and 635nm wavelengths through an optical mixer was 12.2% and 5.4%, respectively. This approach also provides robust thermal packaging by efficiently managing thermal power loss of ILDs.
| Original language | English |
|---|---|
| Title of host publication | 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 273-276 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781479989553 |
| DOIs | |
| Publication status | Published - 2015 Aug 5 |
| Event | 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 - Anchorage, United States Duration: 2015 Jun 21 → 2015 Jun 25 |
Publication series
| Name | 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 |
|---|
Other
| Other | 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 |
|---|---|
| Country | United States |
| City | Anchorage |
| Period | 15/6/21 → 15/6/25 |
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All Science Journal Classification (ASJC) codes
- Instrumentation
- Electrical and Electronic Engineering
Cite this
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Fiberless multicolor optoelectrodes using Injection Laser Diodes and Gradient-index lens coupled optical waveguides. / Kampasi, K.; Seymour, J.; Na, K.; Wise, K. D.; Yoon, E.
2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 273-276 7180914 (2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Fiberless multicolor optoelectrodes using Injection Laser Diodes and Gradient-index lens coupled optical waveguides
AU - Kampasi, K.
AU - Seymour, J.
AU - Na, K.
AU - Wise, K. D.
AU - Yoon, E.
PY - 2015/8/5
Y1 - 2015/8/5
N2 - We present an integrated optoelectrode that can deliver multicolor light from a waveguide coupled to an optical mixer. Such a device can provide spatial precision and scalability needed to enable independent activation and silencing of local neural circuits, allowing study of brain activities such as memory consolidation networks in the hippocampus. We have demonstrated successful implementation of fiber-less optoelectrodes in a highly compact form by achieving efficient end-fire coupling between a side-emitting injection laser diode (ILD) and a dielectric channel waveguide via a Gradient-index (GRIN) lens. Total optical efficiency achieved for 405nm and 635nm wavelengths through an optical mixer was 12.2% and 5.4%, respectively. This approach also provides robust thermal packaging by efficiently managing thermal power loss of ILDs.
AB - We present an integrated optoelectrode that can deliver multicolor light from a waveguide coupled to an optical mixer. Such a device can provide spatial precision and scalability needed to enable independent activation and silencing of local neural circuits, allowing study of brain activities such as memory consolidation networks in the hippocampus. We have demonstrated successful implementation of fiber-less optoelectrodes in a highly compact form by achieving efficient end-fire coupling between a side-emitting injection laser diode (ILD) and a dielectric channel waveguide via a Gradient-index (GRIN) lens. Total optical efficiency achieved for 405nm and 635nm wavelengths through an optical mixer was 12.2% and 5.4%, respectively. This approach also provides robust thermal packaging by efficiently managing thermal power loss of ILDs.
UR - http://www.scopus.com/inward/record.url?scp=84955445966&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84955445966&partnerID=8YFLogxK
U2 - 10.1109/TRANSDUCERS.2015.7180914
DO - 10.1109/TRANSDUCERS.2015.7180914
M3 - Conference contribution
AN - SCOPUS:84955445966
T3 - 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
SP - 273
EP - 276
BT - 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
PB - Institute of Electrical and Electronics Engineers Inc.
ER -