Senior Photonics Engineer

Redondo Beach, CA - USA

Yearly Salary: $ 150000 - 180000

Posted on: 30+ days ago

Vacancies: 1 Vacancy

Job Summary

As a Senior Photonics/Optical Communications Engineer you will be responsible for the end-to-end optical signal chain of our laser communication system. You will design and integrate the laser transmitter and optical receiver that drive our high-data-rate link. This includes the seed lasers modulators fiber optics optical amplifiers on the transmit side as well as the fiber-coupled collection optics detectors and front-end electronics on the receive side. Youll own the optical link budget and ensure that we meet the required optical signal-to-noise ratio and sensitivity. This role is very cross-disciplinary: you will work with the Optical Systems lead & Modem/DSP.

As the Photonics lead you will have the freedom to select technologies and shape the architecture and will guide the team in making the optical link a reality.

This position is on-site and ideal for an engineer with deep experience in fiber optic sensors and amplifiers who can drive a design from lab prototype to a space-qualified product.

Responsibilities

Design and develop the high-performance optical transmitter for the FSO link. Design the amplifier chain and manage fiber link budget.
Define the interface between the optical transceiver and the optical head (telescope). Work on the fiber-to-free-space relay optics ensure polarization alignment and beam mode quality are maintained. Work closely with the team to manage the handover from fiber to telescope and to accommodate any pointing misalignments or focus adjustments.
Own the optical link budget analysis calculate and flow down requirements for launch power receiver sensitivity losses and noise figure. Model the end-to-end Optical Signal-to-Noise Ratio (OSNR) and Bit Error Rate (BER) performance as a function of atmospheric loss pointing jitter etc.
Identify and work with vendors for critical optical components. Ensure components meet space qualifications or develop a plan to ruggedize and test COTS components for space use (radiation testing thermal vacuum testing of lasers etc.).
Provide technical input to the rest of the team from an optical communications perspective. Work with the Modem/DSP engineer to define the electrical-optical interface and pointing/control lead to coordinate fiber coupling. Ensure that the optical transceiver design aligns with overall system requirements and assist in system-level testing (e.g. end-to-end test of sending data over the laser link in a simulated environment).

Minimum Qualifications

Bachelors or Masters degree in Electrical Engineering Photonics Optical Engineering Physics or related field.
5 years of hands-on experience developing optical communication hardware or fiber-optic/photonics systems.
Strong knowledge of lasers and fiber optics. Experience with designing laser transmitter systems e.g. working with semiconductor lasers or fiber lasers modulators (EOMs/MZMs or acousto-optic modulators) and optical amplifiers (EDFAs or Raman amplifiers).
Familiarity with managing optical power and nonlinearity (stimulated Brillouin/Raman scattering etc.) in high-power fiber systems.
Experience with optical receivers and detectors for high-speed communications. Knowledge of photodetector types (PIN APD or coherent receivers) and experience designing or testing high-speed photodiode amplifier front-ends. Understanding of concepts like shot noise thermal noise and how to achieve sensitivity down to the quantum limit (e.g. using coherent detection or APDs).
Ability to model and analyze optical system performance. This could include link budget analysis in MATLAB/Python or using specialized photonic simulation tools. Comfort with concepts like OSNR Eb/N0 BER and using those to drive design decisions. Experience interpreting optical spectra eye diagrams and constellation diagrams to evaluate system performance.
Extensive hands-on lab experience with photonic equipment. Proficiency in using optical test instruments (optical spectrum analyzers power meters high-speed oscilloscopes bit-error-rate testers etc.).
Skilled in fiber handling (splicing connector termination fiber alignment) and free-space optical alignment on an optical table. Demonstrated ability to set up complex optical experiments and troubleshoot issues (misalignments reflections noise sources).
Basic familiarity with the electronics and software needed to drive photonic components. For example comfortable reading laser driver and TIA datasheets setting up power supplies or bias tees and possibly programming microcontrollers or scripts (Python/LabVIEW) to control tunable lasers or data acquisition systems.

Preferred Skills and Experience

Aerospace/space experience is highly valued e.g. designing optical or communication hardware for satellites high-altitude aircraft or space instruments. Knowledge of radiation effects on photonic components (radiation-hardened fiber radiation-induced attenuation etc.) and mitigation strategies. Experience with space qualification of optics (vibration testing of fiber assemblies thermal vacuum operation of lasers) is a major plus.
Experience with coherent optical communication systems (homodyne or heterodyne). This includes an understanding of I/Q modulators optical hybrids and complex modulation formats (BPSK QPSK QAM) as well as familiarity with frequency/phase locking techniques for lasers.
Familiarity with state-of-the-art photonic components and tools. For instance experience with LiNbO₃ or silicon photonic modulators integrated photonic circuits wavelength division multiplexing components and modern optical simulation software (VPI Photonics OptiSystem Lumerical etc.). Ability to perform or interpret structural/thermal analysis on optical components.

Additional Information:

Compensation bands are determined by role level location and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills education experience technical capabilities and internal addition to base salary for full-time hires you may also be eligible for long-term incentives in the form of stock options and access to medical vision & dental coverage as well as access to a 401(k) retirement plan.

Impulse Spaces spacecraft manufacturing business is subject to U.S. export regulations including the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR). This position requires applicants to be either U.S. Persons (i.e. U.S. citizen U.S. national lawful permanent U.S. resident (green card holder) an individual granted asylum in the U.S. or an individual admitted in U.S. refugee status) or persons eligible to obtain an export license from the U.S. Departments of State Commerce or other applicable U.S. government agencies. Learn more about the ITAR here.

Impulse Space is an Equal Opportunity Employer; employment with Impulse Space is governed on the basis of merit competence and qualifications and will not be influenced in any manner by race color religion gender national origin/ethnicity veteran status disability status age sexual orientation gender identity marital status mental or physical disability or any other legally protected status.

Required Experience:

Senior IC

Responsibilities

Design and develop the high-performance optical transmitter for the FSO link. Design the amplifier chain and manage fiber link budget.
Define the interface between the optical transceiver and the optical head (telescope). Work on the fiber-to-free-space relay optics ensure polarization alignment and beam mode quality are maintained. Work closely with the team to manage the handover from fiber to telescope and to accommodate any pointing misalignments or focus adjustments.
Own the optical link budget analysis calculate and flow down requirements for launch power receiver sensitivity losses and noise figure. Model the end-to-end Optical Signal-to-Noise Ratio (OSNR) and Bit Error Rate (BER) performance as a function of atmospheric loss pointing jitter etc.
Identify and work with vendors for critical optical components. Ensure components meet space qualifications or develop a plan to ruggedize and test COTS components for space use (radiation testing thermal vacuum testing of lasers etc.).
Provide technical input to the rest of the team from an optical communications perspective. Work with the Modem/DSP engineer to define the electrical-optical interface and pointing/control lead to coordinate fiber coupling. Ensure that the optical transceiver design aligns with overall system requirements and assist in system-level testing (e.g. end-to-end test of sending data over the laser link in a simulated environment).

Minimum Qualifications

Bachelors or Masters degree in Electrical Engineering Photonics Optical Engineering Physics or related field.
5 years of hands-on experience developing optical communication hardware or fiber-optic/photonics systems.
Strong knowledge of lasers and fiber optics. Experience with designing laser transmitter systems e.g. working with semiconductor lasers or fiber lasers modulators (EOMs/MZMs or acousto-optic modulators) and optical amplifiers (EDFAs or Raman amplifiers).
Familiarity with managing optical power and nonlinearity (stimulated Brillouin/Raman scattering etc.) in high-power fiber systems.
Experience with optical receivers and detectors for high-speed communications. Knowledge of photodetector types (PIN APD or coherent receivers) and experience designing or testing high-speed photodiode amplifier front-ends. Understanding of concepts like shot noise thermal noise and how to achieve sensitivity down to the quantum limit (e.g. using coherent detection or APDs).
Ability to model and analyze optical system performance. This could include link budget analysis in MATLAB/Python or using specialized photonic simulation tools. Comfort with concepts like OSNR Eb/N0 BER and using those to drive design decisions. Experience interpreting optical spectra eye diagrams and constellation diagrams to evaluate system performance.
Extensive hands-on lab experience with photonic equipment. Proficiency in using optical test instruments (optical spectrum analyzers power meters high-speed oscilloscopes bit-error-rate testers etc.).
Skilled in fiber handling (splicing connector termination fiber alignment) and free-space optical alignment on an optical table. Demonstrated ability to set up complex optical experiments and troubleshoot issues (misalignments reflections noise sources).
Basic familiarity with the electronics and software needed to drive photonic components. For example comfortable reading laser driver and TIA datasheets setting up power supplies or bias tees and possibly programming microcontrollers or scripts (Python/LabVIEW) to control tunable lasers or data acquisition systems.

Preferred Skills and Experience

Aerospace/space experience is highly valued e.g. designing optical or communication hardware for satellites high-altitude aircraft or space instruments. Knowledge of radiation effects on photonic components (radiation-hardened fiber radiation-induced attenuation etc.) and mitigation strategies. Experience with space qualification of optics (vibration testing of fiber assemblies thermal vacuum operation of lasers) is a major plus.
Experience with coherent optical communication systems (homodyne or heterodyne). This includes an understanding of I/Q modulators optical hybrids and complex modulation formats (BPSK QPSK QAM) as well as familiarity with frequency/phase locking techniques for lasers.
Familiarity with state-of-the-art photonic components and tools. For instance experience with LiNbO₃ or silicon photonic modulators integrated photonic circuits wavelength division multiplexing components and modern optical simulation software (VPI Photonics OptiSystem Lumerical etc.). Ability to perform or interpret structural/thermal analysis on optical components.

Required Experience:

Senior IC