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- Publications
- Influence

Photon Temporal Modes: A Complete Framework for Quantum Information Science

- B. Brecht, D. V. Reddy, C. Silberhorn, M. Raymer
- Physics
- 23 April 2015

Field-orthogonal temporal modes of photonic quantum states provide a new framework for quantum information science (QIS). They intrinsically span a high-dimensional Hilbert space and lend themselves… Expand

Theory of quantum frequency conversion and type-II parametric down-conversion in the high-gain regime

- A. Christ, B. Brecht, W. Mauerer, C. Silberhorn
- Physics
- 31 October 2012

Frequency conversion (FC) and type-II parametric down-conversion (PDC) processes serve as basic building blocks for the implementation of quantum optical experiments: type-II PDC enables the… Expand

A quantum pulse gate based on spectrally engineered sum frequency generation.

- A. Eckstein, B. Brecht, C. Silberhorn
- Physics, Medicine
- Optics express
- 19 July 2010

We introduce the concept of a quantum pulse gate (QPG), a method for accessing the intrinsic broadband spectral mode structure of ultrafast quantum states of light. This mode structure can now be… Expand

Demonstration of coherent time-frequency Schmidt mode selection using dispersion-engineered frequency conversion

- B. Brecht, A. Eckstein, +4 authors C. Silberhorn
- Physics
- 18 March 2014

Time-frequency Schmidt (TFS) modes of ultrafast quantum states are naturally compatible with high bit-rate integrated quantum communication networks. Thus they offer an attractive alternative for the… Expand

From quantum pulse gate to quantum pulse shaper-engineered frequency conversion in nonlinear optical waveguides

- B. Brecht, A. Eckstein, A. Christ, H. Suche, C. Silberhorn
- Physics
- 31 January 2011

Full control over the spatiotemporal structure of quantum states of light is an important goal in quantum optics, to generate, for instance, single-mode quantum pulses or to encode information on… Expand

Bridging visible and telecom wavelengths with a single-mode broadband photon pair source

- C. Soller, B. Brecht, +5 authors C. Silberhorn
- Physics
- 20 August 2009

We present a spectrally decorrelated photon pair source bridging the visible and telecom wavelength regions. Tailored design and fabrication of a solid-core photonic crystal fiber (PCF) lead to the… Expand

Temporal-mode tomography of single photons

- V. Ansari, M. Allgaier, +5 authors C. Silberhorn
- Physics, Mathematics
- Conference on Lasers and Electro-Optics (CLEO)
- 11 July 2016

Accessing a high dimensional Hilbert space spanned by temporal modes (TMs) of single-photons is an intriguing idea for quantum information protocols, though it is experimentally challenging. The… Expand

Tailoring nonlinear processes for quantum optics with pulsed temporal-mode encodings

- V. Ansari, J. Donohue, B. Brecht, C. Silberhorn
- Mathematics, Physics
- 12 March 2018

The time-frequency degree of freedom is a powerful resource for implementing high-dimensional quantum information processing. In particular, field-orthogonal pulsed temporal modes offer a flexible… Expand

An optimized photon pair source for quantum circuits.

- G. Harder, V. Ansari, B. Brecht, T. Dirmeier, C. Marquardt, C. Silberhorn
- Physics, Medicine
- Optics express
- 24 April 2013

We implement an ultrafast pulsed type-II parametric down conversion source in a periodically poled KTP waveguide at telecommunication wavelengths with almost identical properties between signal and… Expand

Highly efficient frequency conversion with bandwidth compression of quantum light

- M. Allgaier, V. Ansari, +6 authors C. Silberhorn
- Medicine, Physics
- Conference on Lasers and Electro-Optics (CLEO)
- 26 October 2016

We demonstrate an engineered sum-frequency-conversion process in lithium nio-bate that provides a bandwidth compression factor of 7.47 at a high efficiency of 61.5 %, thus outperforming spectral… Expand