Osama Terra (0000-0001-9376-914X)

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Prof. Dr. Osama Terra is a research Professor at photonics and precision length measurements at the National Institute of standards, Egypt. Dr. Terra received his BSc and MSc from Ain Shams University and his PhD from Institute of Quantum Optics, Hanover University, Germany. He won several awards, including the best student paper award at the EFTF conference at the European Space Agency (ESA) and M.A. Lotfy from the Egyptian Academy of Science. Two patents have been granted to Dr. Terra from the USA and Egypt patent offices. He has established a center of excellence for fiber optical metrology by a fund from the STDF. Recently, He has awarded the prestigious Fulbright fellowship at the University of California, Santa Barbara (UCSB) and offered a year of postdoctoral research there by UCSB.

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Macquarie University: Sydney, AU

2024-01-01 to present | Research Fellow (Faculty of Science and Engineering)

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Osama Terra

https://orcid.org/0000-0001-9376-914X

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Biography

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Employment (4)

Macquarie University: Sydney, AU

National Institute of Standards: Giza, EG

University of California, Santa Barbara: Santa Barbara, US

Physikalisch-Technische Bundesanstalt: Braunschweig, Niedersachsen, DE

Education and qualifications (3)

Leibniz Universitat Hannover: Hannover, Niedersachsen, DE

Ain Shams University: Cairo, EG

Ain Shams University: Cairo, EG

Professional activities (2)

Optica: Washington, US

American Physical Society: College Park, Maryland, US

Funding (2)

Center of Excellence for Referce Lasers for optical communications

Center of Excellence for Referece Lasers for Optical communications

Works (47)

Correction of laser sweeping nonlinearities using ultralow-loss on-chip 7 m spiral resonators

3D integration enables ultralow-noise isolator-free lasers in silicon photonics

Broadband quantum-dot frequency-modulated comb laser

Broadband quantum-dot frequency-modulated comb laser

Subspace tracking for independent phase noise source separation in frequency combs

Subspace tracking for phase noise source separation in frequency combs

Distance Measurement System Based on Mode-Locked Laser

Calibration of Electronic Distance Meters using autocorrelation of femtosecond pulses

Calibration of laser distance meter using Opto-Electronic oscillator

Soliton mode-locked fiber laser for distance measurements

Characterization of the Frequency Stability of a Multibranch Optical Frequency Comb

Using femtosecond laser pulses for electronic distance meter calibration

A Single Mode From Optical Frequency Comb With Relative Stability of 10−17 Using Stimulated Brillouin Scattering

Chromatic dispersion measurement in optical fibers using optoelectronic oscillations

Optoelectronic oscillations for thermo-optic coefficient measurement of optical fibers

Simple and accurate calibration system for Laser Doppler Velocimeters

Attenuation Scale Calibration of an Optical Time Domain Reflectometer Using an External Laser Source

Precise fiber length measurement using harmonic detection of phase-locked cavity modes

Laser Ranging in Air Utilizing Mode-Locking in Laser Cavities

An ultra‑stable optical frequency standard for telecommunication purposes based upon the 5S1/2 → 5D5/2 two‑photon transition in rubidium

Distance measurement using frequency scanning interferometry with mode-hoped laser

Accurate Fiber Length Measurement Using Time-of-Flight Technique

Investigation of bulk and waveguide frequency doubling crystals for interrogation of a two-photon transition in rubidium

Absolute gauge block calibration using ultra-precise optical frequency synthesizer locked to a femtosecond comb

Precision measurement of the hydrogen 1S-2S frequency via a 920-km fiber link

A 920-kilometer optical fiber link for frequency metrology at the 19th decimal place

Frequency dissemination at the 19th decimal place

Highly stable remote clock comparisons via 920 km optical fiber for precision spectroscopy of atomic hydrogen

Optical frequency transfer via 920 km fiber link with 10-19 relative accuracy

High performance frequency comparisons over optical fibre

Remote frequency measurement of the 1S 0→ 3P 1 transition in laser-cooled 24Mg

A 500 km optical fiber link with six remotely controlled optical amplifiers for frequency comparison between MPQ and PTB

Brillouin amplification in phase coherent transfer of optical frequencies over 480 km fiber

Long-distance remote comparison of ultrastable optical frequencies with 10-15 instability in fractions of a second

Long-distance remote comparison of ultrastable optical frequencies with 1e-15 instability in fractions of a second

Phase-coherent frequency comparison of optical clocks using a telecommunication fiber link

Characterization of an optical Mg frequency standard via a dark telecommunication fiber

Measurement noise floor for a long-distance optical carrier transmission via fiber

Optical frequency transfer via 146 km fiber link with 10-19 relative accuracy

Phase-coherent comparison of two optical frequency standards over 146 km using a telecommunication fiber link

Phase-coherent frequency comparison of optical clocks using a telecommunication fiber link

Telecommunication fiber link for the remote characterization of a magnesium optical frequency standard

Ultra precise frequency dissemination across Germany - Towards a 900 km optical fiber link from PTB to MPQ

Ultra precise frequency dissemination across germany-towards a 900 km optical fiber link from PTB to MPQ

Ultrastable lasers - New developments and applications

Results from the CI-2004 campaign at the BIPM of the BIPM.L-K11 ongoing key comparison

Calibration of grating based optical spectrum analyzers

Peer review (40 reviews for 18 publications/grants)