Linewidth reduction of cleaved-coupled-cavity lasers by optical feedback from a single-mode polarisation-preserving fibre external cavity

1985 ◽  
Vol 21 (24) ◽  
pp. 1146 ◽  
Author(s):  
Y.K. Jhee ◽  
K.-Y. Liou ◽  
C.A. Burrus ◽  
K.L. Hall
Keyword(s):  
Optical Feedback ◽  
External Cavity ◽  
Single Mode ◽  
Cavity Lasers ◽  
Coupled Cavity

Single-mode operation of coupled-cavity lasers based on two-dimensional photonic crystals

2001 ◽  
Vol 79 (25) ◽  
pp. 4091-4093 ◽  
Author(s):  
Thomas D. Happ ◽  
Alexander Markard ◽  
Martin Kamp ◽  
Alfred Forchel ◽  
Srinivasan Anand
Keyword(s):  
Photonic Crystals ◽  
Single Mode ◽  
Two Dimensional ◽  
Single Mode Operation ◽  
Mode Operation ◽  
Cavity Lasers ◽  
Coupled Cavity

External cavity wavelength tunable semiconductor lasers - a review

2008 ◽  
Vol 16 (4) ◽  
Author(s):  
B. Mroziewicz
Keyword(s):  
Semiconductor Lasers ◽  
Optical Feedback ◽  
External Cavity ◽  
Semiconductor Optical Amplifiers ◽  
External Cavity Laser ◽  
External Cavity Lasers ◽  
Recent Developments ◽  
Set Up ◽  
Hybrid Configuration ◽  
Cavity Lasers

AbstractExternal cavity tunable lasers have been around for many years and now constitute a large group of semiconductor lasers featuring very unique properties. The present review has been restricted to the systems based on the edge emitting diode lasers set-up in a hybrid configuration. The aim was to make the paper as concise as possible without sacrificing, however, most important details. We start with short description of the fundamentals essential for operation of the external cavity lasers to set the stage for explanation of their properties and some typical designs. Then, semiconductor optical amplifiers used in the external cavity lasers are highlighted more in detail as well as diffraction gratings and other types of wavelength-selective reflectors used to provide optical feedback in these lasers. This is followed by a survey of designs and properties of various external cavity lasers both with mobile bulk gratings and with fixed wavelength selective mirrors. The paper closes with description of some recent developments in the field to show prospects for further progress directed towards miniaturization and integration of the external cavity laser components used so far to set-up hybrid systems.

scholarly journals Hybrid external-cavity lasers (ECL) using photonic wire bonds as coupling elements

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yilin Xu ◽  
Pascal Maier ◽  
Matthias Blaicher ◽  
Philipp-Immanuel Dietrich ◽  
Pablo Marin-Palomo ◽  
...  
Keyword(s):  
External Cavity ◽  
Heterogeneous Material ◽  
Single Mode ◽  
Monolithic Integration ◽  
Low Loss ◽  
External Feedback ◽  
Wire Bonds ◽  
External Cavity Lasers ◽  
Cavity Lasers ◽  
Photonic Wire

AbstractCombining semiconductor optical amplifiers (SOA) on direct-bandgap III–V substrates with low-loss silicon or silicon-nitride photonic integrated circuits (PIC) has been key to chip-scale external-cavity lasers (ECL) that offer wideband tunability along with small optical linewidths. However, fabrication of such devices still relies on technologically demanding monolithic integration of heterogeneous material systems or requires costly high-precision package-level assembly, often based on active alignment, to achieve low-loss coupling between the SOA and the external feedback circuits. In this paper, we demonstrate a novel class of hybrid ECL that overcome these limitations by exploiting 3D-printed photonic wire bonds as intra-cavity coupling elements. Photonic wire bonds can be written in-situ in a fully automated process with shapes adapted to the mode-field sizes and the positions of the chips at both ends, thereby providing low-loss coupling even in presence of limited placement accuracy. In a proof-of-concept experiment, we use an InP-based reflective SOA (RSOA) along with a silicon photonic external feedback circuit and demonstrate a single-mode tuning range from 1515 to 1565 nm along with side mode suppression ratios above 40 dB and intrinsic linewidths down to 105 kHz. Our approach combines the scalability advantages of monolithic integration with the performance and flexibility of hybrid multi-chip assemblies and may thus open a path towards integrated ECL on a wide variety of integration platforms.

Continuous operation of monolithic dynamic‐single‐mode coupled‐cavity lasers

1984 ◽  
Vol 44 (4) ◽  
pp. 368-370 ◽  
Author(s):  
L. A. Coldren ◽  
K. J. Ebeling ◽  
J. A. Rentschler ◽  
C. A. Burrus ◽  
D. P. Wilt
Keyword(s):  
Single Mode ◽  
Continuous Operation ◽  
Cavity Lasers ◽  
Coupled Cavity

scholarly journals Bidirectional High-speed Chaotic Communication System based on an All-optical Time-delay Feedback Loop

2021 ◽  
Author(s):  
Jingyang liu ◽  
xuefang zhou ◽  
miao hu ◽  
qiliang li
Keyword(s):  
High Speed ◽  
Feedback Loop ◽  
Optical Feedback ◽  
External Cavity ◽  
Single Mode ◽  
Fiber Amplifier ◽  
Remote Communication ◽  
Erbium Doped Fiber Amplifier ◽  
All Optical ◽  
Communication Scheme

Abstract In this paper, a bidirectional high-speed chaotic optical communication scheme with physical layer encryption is proposed and studied theoretically. The external cavity optical feedback method is analyzed, an erbium-doped fiber amplifier (EDFA) is used to represent the all-optical delay feedback loop of the traditional external cavity, which can overcome the shortcomings of the traditional method such as lower precision and large equipment volume. And the bidirectional communication scheme is discussed, which just sets the encryption device at the transmitter, uses the correlation between the two encryption signals to decrypt, and cancels the decryption device at the receiver, which not only simplifies the experimental equipment, but also solves the problem that the receiver can’t decrypt synchronously due to the channel damage in remote communication, and is easy to be applied in production and life. Finally, the simulation results show that the bit error rate is less than 10− 5, the bidirectional transmission of 10Gb/s information over 85km single-mode fiber is successfully realized.

Stabilization and optimum biasing of dynamic‐single‐mode coupled‐cavity lasers

1984 ◽  
Vol 44 (2) ◽  
pp. 169-171 ◽  
Author(s):  
L. A. Coldren ◽  
K. J. Ebeling ◽  
R. G. Swartz ◽  
C. A. Burrus
Keyword(s):  
Single Mode ◽  
Cavity Lasers ◽  
Coupled Cavity

The Effects of Temperature, Injection Current and Optical Feedback on the Frequency Stabilization of External Cavity Diode Laser

2014 ◽  
Vol 979 ◽  
pp. 459-462
Author(s):  
N. Srisuai ◽  
N. Chattrapiban ◽  
W. Rakreungdet
Keyword(s):  
Diode Laser ◽  
Laser Cooling ◽  
Optical Feedback ◽  
External Cavity ◽  
Single Mode ◽  
Laser Frequency ◽  
Injection Current ◽  
External Cavity Diode Laser ◽  
High Resolution Spectroscopy ◽  
Single Mode Laser

A frequency-stabilized diode laser is widely used for applications in laser cooling and high-resolution spectroscopy. In this work, the 780-nm external cavity diode laser was constructed and subsequently frequency-controlled by three parameters, i.e., temperature, injection current and optical feedback. The laser frequency was measured with respect to the 5S1/2 → 5P3/2 (D2-lines) transition of Rubidium, while the laser mode was characterized by a Fabry-Perot interferometer. The laser temperature was passively controlled to a single value between 20 ̊C and 25 ̊C while the injection current was investigated in combination with course and fine adjustments of optical feedback. Only data relevant to a single-mode laser operation was collected. It was found that as the current increased, the laser frequency shifted linearly with slopes approximately 0.5-0.8 GHz/mA. Optical feedback from the external cavity was tuned by the voltage applied to the piezoelectric transducer, yielding a linear frequency response of approximately 0.2 GHz/V. The measured parameters were rearranged to represent the island of stability of the laser, suggesting suitable conditions that yielded single-mode operation, at a desirable laser frequency. The results were important for a design of an active feedback, in order to further reduce the frequency linewidth and intensity noise of the laser.

scholarly journals Inducing tunable single-mode operation of Fabry-Perot semiconductor laser coupled with very-short cavity with selective optical feedback

2019 ◽  
Vol 15 (1) ◽  
Author(s):  
Mohammed S. Al-Ghamdi ◽  
Ahmed Bakry ◽  
Moustafa Ahmed
Keyword(s):  
Semiconductor Laser ◽  
Continuous Wave ◽  
Optical Feedback ◽  
External Cavity ◽  
Single Mode ◽  
Modal Gain ◽  
Central Wavelength ◽  
Single Mode Operation ◽  
Mode Operation ◽  
Mode Oscillation

Abstract We report on achieving tuned single mode operation of a multimode semiconductor laser by coupling it to a very-short external cavity with selective feedback. We show that the induced uniform feedback light from the very-short external cavity can induce single-mode oscillation over a broad range of optical feedback. Then by applying selective external to the optimum settings of the single-mode oscillation, we predict tuning of the single-mode output over a wavelength range of ~ 20 nm by detuning the peak wavelength of optical feedback from the central wavelength of the modal gain. The study is based on modeling of the dynamics of multimode semiconductor laser subject to selective optical feedback. The model takes into account mechanisms of both self- and cross-modal gain suppression, and the study is concerned with the very-short external cavity that corresponds to stable continuous-wave (CW) operation.

scholarly journals Compact Low-Power Consumption Single-Mode Coupled Cavity Lasers

2017 ◽  
Vol 23 (6) ◽  
pp. 1-9 ◽  
Author(s):  
Shamsul Arafin ◽  
Gordon B. Morrison ◽  
Milan L. Mashanovitch ◽  
Leif A. Johansson ◽  
Larry A. Coldren
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Single Mode ◽  
Low Power Consumption ◽  
Cavity Lasers ◽  
Coupled Cavity

scholarly journals Single-mode, narrow-linewidth external cavity quantum cascade laser through optical feedback from a partial-reflector

2010 ◽  
Vol 18 (25) ◽  
pp. 26037 ◽  
Author(s):  
Richard A. Cendejas ◽  
Mark C. Phillips ◽  
Tanya L. Myers ◽  
Matthew S. Taubman
Keyword(s):  
Quantum Cascade Laser ◽  
Optical Feedback ◽  
External Cavity ◽  
Single Mode ◽  
Narrow Linewidth ◽  
Quantum Cascade
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