Optical Bistability and Thermal Mode Hopping in External Cavity Feedback Semiconductor Lasers

Meng, Da; Yu, Haiyang; Zhang, Yejin; Liu, Jianguo

doi:10.3390/photonics10091027

Photonics

2023

DOI: 10.3390/photonics10091027

|View full text |Cite

Optical Bistability and Thermal Mode Hopping in External Cavity Feedback Semiconductor Lasers

Da Meng,

Haiyang Yu,

Yejin Zhang

et al.

Abstract: The external cavity feedback semiconductor laser shows obvious optical bistability in practice. That is, at the same operating temperature, different temperature tuning directions will lead to different laser mode outputs. This will lead to optical mode hopping and unstable output wavelength of the laser. In this work, we measured this phenomenon and explained it through a theoretical model with thermal synchronization considered. Our measured results show obvious bistability and temperature tuning direction d… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 5 publications

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Multimodal In‐Sensor Computing System Using Integrated Silicon Photonic Convolutional Processor

Xiao,

Ren,

Zhuge

et al. 2024

Advanced Science

View full text Add to dashboard Cite

Photonic integrated circuits offer miniaturized solutions for multimodal spectroscopic sensory systems by leveraging the simultaneous interaction of light with temperature, chemicals, and biomolecules, among others. The multimodal spectroscopic sensory data is complex and has huge data volume with high redundancy, thus requiring high communication bandwidth associated with high communication power consumption to transfer the sensory data. To circumvent this high communication cost, the photonic sensor and processor are brought into intimacy and propose a photonic multimodal in‐sensor computing system using an integrated silicon photonic convolutional processor. A microring resonator crossbar array is used as the photonic processor to implement convolutional operation with 5‐bit accuracy, validated through image edge detection tasks. Further integrating the processor with a photonic spectroscopic sensor, the in situ processing of multimodal spectroscopic sensory data is demonstrated, achieving the classification of protein species of different types and concentrations at various temperatures. A classification accuracy of 97.58% across 45 different classes is achieved. The multimodal in‐sensor computing system demonstrates the feasibility of integrating photonic processors and photonic sensors to enhance the data processing capability of photonic devices at the edge.

show abstract

Multimodal In‐Sensor Computing System Using Integrated Silicon Photonic Convolutional Processor

Xiao,

Ren,

Zhuge

et al. 2024

Advanced Science

View full text Add to dashboard Cite

show abstract

Laser Printing of Large‐Area Conformal 3D photonic Circuits in Glass

Han,

Wang,

et al. 2024

Laser & Photonics Reviews

View full text Add to dashboard Cite

Photonic integrated circuits (PICs) are iterating on electronic ones to enable higher‐speed parallel computing while meeting the growing demands for energy efficiency in big‐data processing. However, manufacturing multi‐layered and 3D PICs remains challenging based on conventional planar lithography. Here, a rapid prototyping technique is delineated to configure large‐area and 3D PIC in glass based on laser‐direct written optical waveguides by employing femtosecond cylindrically polarized vortex laser beams. The vortex laser beam is mathematically rotationally invariant and capable of conformally transforming waveguide cross‐sections at arbitrary bending angles of 0–90° and across a large depth change. Based on this approach, a one‐layer 12‐core waveguide circuit with a variable cross‐section (diameter 5–11.5 µm) while maintaining a high mode ellipticity >0.974, as well as a more complex three‐layer 36‐core connector in which the waveguide dives continuously from 50 µm to 550 µm with a small loss difference of <0.1 dB is demonstrated. This work offers a pathway for 3D imprinting of large‐area photonic circuits in glass and other transparent materials, which has potential applications in high‐efficiency photonic computing, multidimensional quantum networks, and 3D optics topology.

show abstract

Vertically Integrated Self‐Monitoring AlGaN‐Based Deep Ultraviolet Micro‐LED Array with Photodetector Via a Transparent Sapphire Substrate Toward Stable and Compact Maskless Photolithography Application

Yu,

Yao,

Memon

et al. 2024

Laser & Photonics Reviews

View full text Add to dashboard Cite

Drawing inspiration from modern integrated circuit systems composed of various electronic components built on a single silicon platform, the emerging integrated photonics can also follow a similar trend in the pursuit of expanded optical functionalities in constructing compact optoelectronic systems. Herein, vertically integrated a micro‐scale light‐emitting diode (micro‐LED) array with a photodetector (PD) side‐by‐side through a transparent sapphire substrate is proposed. The downward emitted photons from the micro‐LEDs can easily transmit through the transparent sapphire and then be captured by the PD fabricated on the backside of the sapphire. Additionally, by integrating a feedback electrical circuit, a self‐stabilized light output power is demonstrated from the micro‐LED array in such vertically integrated LED/PD architecture, which cannot only monitor the fluctuation of light intensity from the micro‐LED array over time but also provide a constant output feedback to ensure a stable light output power. Such a compact and stable DUV light source composed of micro‐LED array is then employed for constructing a DUV maskless photolithography system. To best of our knowledge, this is the first demonstration of maskless photolithography based on DUV micro‐LED active matrix. The proposed vertically‐stacked optical device architecture by leveraging the transparent substrate offers a new path toward the realization of future integrated photonic systems.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Optical Bistability and Thermal Mode Hopping in External Cavity Feedback Semiconductor Lasers

Cited by 5 publications

References 33 publications

Multimodal In‐Sensor Computing System Using Integrated Silicon Photonic Convolutional Processor

Multimodal In‐Sensor Computing System Using Integrated Silicon Photonic Convolutional Processor

Laser Printing of Large‐Area Conformal 3D photonic Circuits in Glass

Vertically Integrated Self‐Monitoring AlGaN‐Based Deep Ultraviolet Micro‐LED Array with Photodetector Via a Transparent Sapphire Substrate Toward Stable and Compact Maskless Photolithography Application

Contact Info

Product

Resources

About