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Self-injection locking (SIL) of laser diodes to microresonators is a powerful technique that enables compact narrow linewidth lasers. Here, we extend this technique to chip-integrated Fabry-Perot microresonators, which offer high-quality…

Optically pumped atomic magnetometers (OPAMs) offer high sensitivity at room temperature and are increasingly considered for portable magnetic sensing in geomagnetic-field environments. Here we report a handheld-scale, single-beam scalar…

Atomic Physics · Physics 2026-01-14 Heonsik Lee , Hyunbeen Lee , Minseok Choi , Yoontae Hwang , Deok-Young Lee

The integration of a double barrier resonant tunneling diode within a unipolar optical waveguide provides electrical gain over a wide bandwidth. Due to the non-linearities introduced by the double barrier resonant tunneling diode an…

Optics · Physics 2007-05-23 J. J. N. Calado , J. M. L. Figueiredo , C. N. Ironside

We report a simple tunable master-slave laser injection-lock scheme for atomic physics experiments. Seed light from an external cavity diode laser is injected into a high-power fiber-pigtailed diode laser via a fiber optic circulator.…

Atomic Physics · Physics 2019-05-22 Toshihiko Shimasaki , Eustace R. Edwards , David DeMille

We describe a fiber Raman amplifier for nanosecond and sub-nanosecond pulses centered around 1260 nm. The amplification takes place inside a 4.5-m-long polarization-maintaining phosphorus-doped fiber, pumped at 1080 nm by 3-ns-long pulses…

Self-injection locking is a dynamic phenomenon representing stabilization of the emission frequency of an oscillator with a passive cavity enabling frequency filtered coherent feedback to the oscillator cavity. For instance, self-injection…

We report a new type of vulnerability in practical implementations of quantum key distribution systems. We show that it is possible to increase the pulse energy of a source laser diode not only by injection-locking it by external light near…

Quantum Physics · Physics 2025-10-31 Maxim Fadeev , Anastasiya Ponosova , Qingquan Peng , Anqi Huang , Roman Shakhovoy , Vadim Makarov

We demonstrate an optical waveguide device, capable of supporting the high, in-vacuum, optical power necessary for trapping a single atom or a cold atom ensemble with evanescent fields. Our photonic integrated platforms, with suspended…

Free-induction-decay (FID) magnetometers have evolved as simple magnetic sensors for sensitive detection of unknown magnetic fields. However, these magnetometers suffer from a fundamental problem known as a "dead zone," making them…

Atomic Physics · Physics 2025-01-14 Shrey Mehta , G. K. Samanta , Raghwinder Singh Grewal

We theoretically propose a scheme to realize an all-optically controlled quantum optomechanical transistor based on a cavity-optomechanical system, where the cavity photons interfere with the input signal photons while the pump field…

Quantum Physics · Physics 2015-08-25 Jin-Jin Li , Wei-He , Ka-Di Zhu

We demonstrate an easily tunable locking scheme for stabilizing frequency-sum of two lasers on a two-photon ladder transition based on polarization rotation in warm rubidium vapors induced by magnetic field and circularly polarized drive…

Atomic Physics · Physics 2016-04-26 Michał Parniak , Adam Leszczyński , Wojciech Wasilewski

Using a high-Q diamond microresonator (Q > 300,000) interfaced with high-power-handling directly-written doped-glass waveguides, we demonstrate a Raman laser in an integrated platform pumped in the near-visible. Both TM-to-TE and TE-to-TE…

We propose and analyze theoretically a double magnetic plasmon resonance nanolaser, in which Ytterbium-erbium co-doped material is used as the gain medium. Through design of the double magnetic resonance modes, pumping light (980nm) can be…

Optics · Physics 2009-11-13 Z. H. Zhu , H. Liu , S. M. Wang , T. Li , J. X. Cao , W. M. Ye , X. D. Yuan , S. N. Zhu

Rapid development of Fabry-Perot quantum cascade laser frequency combs has converted them from laboratory devices to key components of next-generation fast molecular spectrometers. Recently, free-running ring quantum cascade lasers allowed…

Optical modulators are required to have high modulation bandwidths and a compact footprint. In this paper we experimentally demonstrate a novel Si/In$_2$O$_3$ hybrid plasmonic waveguide modulator, which is realized by an asymmetric…

Applied Physics · Physics 2022-01-19 Yishu Huang , Jun Zheng , Bingcheng Pan , Lijia Song , Guanan Chen , Zejie Yu , Hui Ye , Daoxin Dai

High coherence visible and near-visible laser sources are centrally important to the operation of advanced position/navigation/timing systems as well as classical/quantum sensing systems. However, the complexity and size of these bench-top…

Type II optical parametric oscillators are amongst the highest-quality sources of quantum-correlated light. In particular, when pumped above threshold, such devices generate a pair of bright orthogonally-polarized beams with strong…

Quantum Physics · Physics 2016-09-26 Joaquin Ruiz-Rivas , Germán J. de Valcárcel , Carlos Navarrete-Benlloch

We report on the writing of chirped volume Bragg gratings using 400 nm femtosecond pulses and the phase-mask inscription technique in the pure silica inner cladding of the gain fiber. The usefulness of such fiber component is demonstrated…

Optics · Physics 2019-09-02 Lauris Talbot , Pascal Paradis , Martin Bernier

Soliton microcombs offer the prospect of advanced optical metrology and timing systems in compact form factors. In these applications, pumping of microcombs directly from a semiconductor laser without amplification or triggering components…

Optics · Physics 2019-05-01 Myoung-Gyun Suh , Christine Y. Wang , Cort Johnson , Kerry Vahala

Cavity-free efficient coupling between emitters and guided modes is of great current interest for nonlinear quantum optics as well as efficient and scalable quantum information processing. In this work, we extend these activities to the…

Optics · Physics 2014-03-11 Sanli Faez , Pierre Türschmann , Vahid Sandoghdar