Fiberless multicolor optoelectrodes using Injection Laser Diodes and Gradient-index lens coupled optical waveguides

K. Kampasi; J. Seymour; K. Na; K. D. Wise; E. Yoon

doi:10.1109/TRANSDUCERS.2015.7180914

Fiberless multicolor optoelectrodes using Injection Laser Diodes and Gradient-index lens coupled optical waveguides

K. Kampasi, J. Seymour, K. Na, K. D. Wise, E. Yoon

Yonsei Advanced Science Institute

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

7 Citations (Scopus)

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	https://doi.org/10.1109/TRANSDUCERS.2015.7180914
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

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

All Science Journal Classification (ASJC) codes

Instrumentation
Electrical and Electronic Engineering

Access to Document

10.1109/TRANSDUCERS.2015.7180914

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Kampasi, K., Seymour, J., Na, K., Wise, K. D., & Yoon, E. (2015). Fiberless multicolor optoelectrodes using Injection Laser Diodes and Gradient-index lens coupled optical waveguides. In 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 (pp. 273-276). [7180914] (2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TRANSDUCERS.2015.7180914

Kampasi, K. ; Seymour, J. ; Na, K. ; Wise, K. D. ; Yoon, E. / Fiberless multicolor optoelectrodes using Injection Laser Diodes and Gradient-index lens coupled optical waveguides. 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 273-276 (2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015).

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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.",

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Kampasi, K, Seymour, J, Na, K, Wise, KD & Yoon, E 2015, Fiberless multicolor optoelectrodes using Injection Laser Diodes and Gradient-index lens coupled optical waveguides. in 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015., 7180914, 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015, Institute of Electrical and Electronics Engineers Inc., pp. 273-276, 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015, Anchorage, United States, 15/6/21. https://doi.org/10.1109/TRANSDUCERS.2015.7180914

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

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AU - Yoon, E.

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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.

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Kampasi K, Seymour J, Na K, Wise KD, Yoon E. Fiberless multicolor optoelectrodes using Injection Laser Diodes and Gradient-index lens coupled optical waveguides. In 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). https://doi.org/10.1109/TRANSDUCERS.2015.7180914

Fiberless multicolor optoelectrodes using Injection Laser Diodes and Gradient-index lens coupled optical waveguides

Abstract

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Bibliographical note

All Science Journal Classification (ASJC) codes

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