1. Axsun Technologies

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    1. Mentioned In 164 Articles

    2. Real time FPGA resampling for swept source optical coherence tomography

      Real time FPGA resampling for swept source optical coherence tomography
      Real-time swept source OCT data is most often sampled using a specially cut hardware k-clock. The present invention involves mathematically resampling signals within an FPGA-based data acquisition board based on data sampled from a wide free spectral range reference interferometer. The FPGA can then multiply up the reference clock rate to achieve greater imaging depth. The Nyquist fold-over depth can thus be programmed from a standard reference to an arbitrary ...
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    3. Laser swept source with controlled mode locking for OCT medical imaging

      Laser swept source with controlled mode locking for OCT medical imaging
      An optical coherence analysis system uses a laser swept source that is constrained to operate in a mode locked condition. This is accomplished by synchronously changing the laser cavity's gain and/or phase based on the round trip travel time of light in the cavity. Many high-speed wavelength swept laser sources emit pulses synchronized with the round trip time of the cavity as part of a nonlinear optical frequency ...
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    4. Temperature stabilized phase reference for MEMS based swept sources

      Temperature stabilized phase reference for MEMS based swept sources
      MEMS tunable lasers are not inherently phase stable because Brownian motion and drive electronics noise make the starting wavelength of the sweep unstable with respect to the electrical sweep trigger. A typical solution to the problem is to use a fiber Bragg reflector wavelength trigger. That is a sub-optimal solution since environmental changes can move both the Bragg peak and the k-clock phase. We have packaged temperature controlled trigger and ...
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    5. Tunable 1060nm VCSEL co-packaged with pump and SOA for OCT and LiDAR

      Tunable 1060nm VCSEL co-packaged with pump and SOA for OCT and LiDAR
      A 1060 nm optically pumped tunable VCSEL was formed from an InGaAs/AlGaAs/GaAs half-VCSEL bonded to a MEMS movable mirror on a silicon substrate. The VCSEL was co-packaged in a 14-pin butterfly module with an 825 nm pump laser and a 1060 nm semiconductor optical amplifier. The co-packaged device exhibited shot-noise-limited sensitivity with up to 50 mW output power and 75 nm tunability. Ophthalmic OCT, especially whole-eye imaging and ...
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    6. OCT swept laser with cavity length compensation

      OCT swept laser with cavity length compensation
      An optical coherence tomography system utilizes an optical swept laser that has cavity length compensator that changes an optical length of the laser cavity for different optical frequencies to increase the length of the laser cavity for lower optical frequencies. Specifically, a spectral separation between longitudinal cavity modes of the laser cavity is shortened or alternatively lengthened as a passband of a cavity tuning element sweeps through a scanband of ...
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    7. Long-to-short wavelength swept source

      Long-to-short wavelength swept source
      Most swept external cavity diode lasers tune in the short-to-long wavelength direction (red tuning). Lower relative intensity noise (RIN) and higher output power are typically possible in this direction. We show here that long-to-short tuning (blue tuning) is possible for a short, linear cavity laser that has both low noise and high power. This mode of operation is made possible by nonlinear frequency broadening in the semiconductor optical amplifier (SOA ...
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    8. Moody's says Excelitas' proposed $80 million first lien term loan facility to acquire Axsun is a moderate credit negative; ratings unaffected

      Moody's says Excelitas' proposed $80 million first lien term loan facility to acquire Axsun is a moderate credit negative; ratings unaffected
      Moody's Investors Service ("Moody's") says EXC Holdings III Corp.'s (dba Excelitas) proposed $80 million incremental first lien term loan facility to fund the acquisition of Axsun is a modest credit negative, but it does not impact the company's B3 Corporate Family Ratings or stable rating outlook. Following the add-on, the USD denominated first lien term loan will increase to $685 million from $605 million ($681 million ...
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    9. OCT system with bonded MEMS tunable mirror VCSEL swept source

      OCT system with bonded MEMS tunable mirror VCSEL swept source
      A microelectromechanical systems (MEMS)-tunable vertical-cavity surface-emitting laser (VCSEL) in which the MEMS mirror is bonded to the active region. This allows for a separate electrostatic cavity that is outside the laser's optical resonant cavity. Moreover, the use of this cavity configuration allows the MEMS mirror to be tuned by pulling the mirror away from the active region. This reduces the risk of snap down. Moreover, since the MEMS ...
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    10. Integrated optical coherence analysis system

      Integrated optical coherence analysis system
      Optical coherence tomography (OCT) probe and system designs are disclosed that minimize the effects of mechanical movement and strain to the probe to the OCT analysis. It also concerns optical designs that are robust against noise from the OCT laser source. Also integrated OCT system-probes are included that yield compact and robust electro-opto-mechanical systems along with polarization sensitive OCT systems.
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    11. 1-15 of 164 1 2 3 4 ... 9 10 11 »
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. About Axsun Technologies

    Axsun Technologies

    Axsun Technologies.  Sources (Tunable), Micro-Optical Systems and Subsystems.  Integrating Optics and Electronics including: Tunable & Broadband Sources, Tunable Filters, Miniature optical packages. With an experienced, multi-disciplined team of engineering, manufacturing, and marketing professionals, Axsun Technologies, founded in 1999, is developing a bold new approach to the design and manufacture of miniaturized optical micro-instruments for a variety of industries.  The Axsun™ Packaging Platform combines proprietary Micro-Optics lens technology, and patented micro-alignment structures with a highly scalable, automated assembly process to create the foundation of a new class of miniature optoelectronic products.

  3. Quotes about Axsun Technologies

    1. The Mass. court's decision is only one ruling of a much broader case involving 30 trade secret claims against Volcano and subsidiary Axsun Technologies Inc.... today's ruling does not call into question the significant jury verdict from February 2010... the decision does not change the Superior Court of Massachusetts' verdict against Axsun Technologies, ruling that the company must ban the sale of its lasers to Volcano for all fields of use, not just the field of human coronary artery imaging.
      In Massachusetts court rejects St. Jude's trade secret claims against Volcano