- DIODE LASERS... COLLECTING SOLUTIONS!
Opto-mystic offers consulting in the design and development of optical systems,
particularly systems that utilize Laser Diodes. While the Diode Laser has revolutionized
the world of optics, their effective use can be confusing. Opto-mystic has consulted
to various companies for over twenty years on Diode Laser systems design.
As a consultant, Opto-mystic can help your company utilize the wonderful Laser
Diode optical source.
ELECTRO-OPTICS CONSULTING FOR:
Opto-mystic has participated in the development
of these Diode Laser systems:
Other projects Opto-mystic has participated in:
Opto-mystic offers consulting aimed at solving technological
issues involved in the design and manufacturing of Diode Laser based systems.
To contact us with questions regarding Opto-mystic's services,
please email us at email@example.com
NRC Pneumatically Isolated Optical Table .....
NRC Optical Breadboard
80286, 80386 and 80486 Computers
Omega Thermocouple Thermometer
Various Diode Laser Systems
Fluke Thermocouple Thermometer
Aerotech, Spectra Physics He-Ne Lasers
Tana Digital Scale, .1 mg
Lambda Power Supply
IEC Function Generator
Dana, 6 digit Multimeter
TSI Hot Wire Anemometer
Varian Chart Recorder
Soltec Dual Channel Chart Recorder
Laser Beam Profiler
Precision Mercury Thermometer
Diode Laser Spectrum Analyzer
Olympus Microscope with Camera
1/20 l , 4" diameter, Optical Flat
CCD Camera with Near IR Capabilities
Ling Precision Vibrator
SMARTT, High NA Interferometer
Optical Power Meter
Mechanical Inspection Equipment
PROFESSIONAL EXPERIENCE - OPTICAL
- Analyzed the beam characteristics of a state of the art communications
diode laser (1310 nm). The results of this analysis caused the company to
change direction in its product offerings.
- Defined the 5.6 mm optical package for a state of the art communications
laser diode (1310 nm) due to be produced in qualities of 50,000 a month.
- Analyzed the characteristics of an optical integrating
cylinder line collector. Suggested changes that improved the collection efficiency.
Solved the problem of re-illumination from the integrating cylinder. The collector
is in production in a X-ray phosphor reader now being sold by Kodak in quantities
of 5,000 units per year. One patent issued.
- Conceived and designed a compact vibration insensitive diode laser scanner
for use in a phosphor X-ray CR reader
- Defined the optical characteristics of a fiber coupled diode laser scanner
for use in a X-ray phosphor CR reader
- Conceived and developed a CW diode laser turnkey system. Diolite won an
award as one of the ten best products of 1984 (Lasers and Applications Magazine).
Identified the market and coordinated the product launch. Sold company and
product. Diolite is being used worldwide. This product gave rise to similar
systems by Melles Griot, ILX Lightwave, Spindler & Hoyer and D. O. Industries.
LICONIX Inc. of Sunnyvale, CA marketed Diolite.
- Designed diode laser aimer, "Laserscope" and diode laser pointer, "Laserwand".
Product introduction allowed company to triple its total sales volume. Products
were being sold at a level of 10,000 per year. One patent issued
- Responsible for conception and design of an innovative diode laser scanner
for a wide format (36"), high resolution (400 DPI) four color electrostatic
printer/plotter. Scanner is extremely compact and robust. Scanner achieved
diffraction limited performance with a single plano-convex lens and a beam
diameter of 8 mm. In addition, the scanner, without correction, does not posses
the three traditional scanner errors: F-Theta, depth-of-field and cross-axis
wobble. One patent issued.
- Responsible for conception and execution of a new high accuracy (+/- .0002"),
low cost, optical registration system for printer/plotters. The registration
system features zero delay activation and therefore does not suffer from averaging
errors. This registration system represents the present state of the art in
web-fed, wide-format printer/plotters. Two patents issued.
- Conceived and built an optical system to detect chemical
species in the atmosphere utilizing Surface Plasmon Resonance (SPR). Received
a SBIR phase I award. Achieved all goals of the project plan.
- Project engineering responsibility for sensor development
of a diode laser based oxygen meter. Defined sensor configuration that resulted
in improvement of more than an order of magnitude in performance. Three patents
- Conceived of a new method to accurately adjust the collimation
of a diode laser assembly. System was free of mechanical cross talk even in
the presence of significant mechanical asymmetry and featured auto-locking
once adjustment was complete. System was robust and yet low in cost and easy
to assemble. One patent issued.
- Conceived and built an optical system to measure humidity
utilizing Surface Plasmon Resonance (SPR).
- Conceived and built an optical system to measure laser
wavelength utilizing Surface Plasmon Resonance (SPR). Fabricated prototype
could measure wavelength changes of .02 nm.
- Conceived of a new color printer technology that promises
to result in a small format (8.5"-11"), plain paper, dry toner, 400 dpi, 6
ppm or higher printer engine with improved color quality. One omnibus patent
- Improved a diode laser interferometer for "Spot Scan"
product sold by Photon, Inc., Santa Clara, CA. Improvement enabled product
to utilize a multimode diode laser without temperature control and avoided
the mode-hopping problem. One patent issued
- Created diode laser spectrum analyzer that utilizes a
single detector and yet yields real time diode laser spectrum. Currently being
sold by Photon Inc., Santa Clara, CA.
- Created and reduced to practice a new fiber optical registration
sensor for high accuracy color printing. Sensor has ability to be mounted
in the line of print of a print head thereby eliminating registration error
caused by spatial difference between sensor and print head.
- Conceived and reduced to practice a low cost method for
rounding a diode laser beam with high efficiency. Enables the use of low cost
Low NA lens and yet produces a round, near Gaussian beam in both dimensions.
- Developed a holographic diode laser scanner that was
part of a low cost page printer. Responsible for the optical system, selection
and vendor identification. Three patents issued.
- Developed process to produce a high efficiency (75%)
low cost holographic scanner element. Process involved the production of photo-resist
surface relief holograms.
- Worked on the design of a diode laser scanner for a wide
format electrostatic printer/plotter. The scanner incorporated a torsional
vibrating mirror. Two patents were applied for.
- Conceived and built a new concept in flowing dye cells
for Dye Lasers. The cell featured symmetrical light pumping of the dye from
- Conceived and built an innovative UV/visible light separator
for use with non-linear optical frequency doublers that utilized high peak
power pulsed lasers.
- Conceived of a method to eliminate the effects of wobble
in a holographic laser scanner. The resulting scanner would produce a straight-line
scan without additional optics. One patent issued.
- Conceived of special print patterns to allow microanalysis
of registration errors through macro viewing in a color printer/plotter.
- Designed a three orthogonal measurement axis laser Doppler
- Created new method to extract the Z-dimension velocity
information of a particle using 180-degree dual scatter light from the measurement
- Designed 180-degree dual beam Laser Doppler Velocimeter.
- Designed 180-degree reference beam backscatter Laser
- Designed and built a holographic microscope that produced
holographic motion pictures of microscopic subjects.
- Designed optical setup and demonstrated "Carrier Suppression
and Restoration". This was a method to record a Fourier Transform hologram
where the Zero order was removed on exposure and was subsequently reintroduced.
This method allowed phase contrast microscopy to be performed with normal
sized optical elements.
- Performed experiments to verify the desensitization of
time average holographic interferometry.
- Designed and constructed setup to analyze violin's mechanical
movement using real time stroboscopic holographic interferometry.
- Analyzed extremely complex eight-prism beamsplitter used
in a two axis Laser Doppler Velocimeter and defined the criteria needed to
achieve the system goals.
- Incorporated optical pedestal removal into a two axis
Laser Doppler Velocimeter.
PROFESSIONAL EXPERIENCE - ELECTRO-MECHANICAL
- Championed a project to develop a new technology electrostatic print
head for an electrostatic printer/plotter. The project entailed the Synergy
team working with two world-class companies. The project expended over $2,000,000.
The new head technology has resulted in the production of evaluation heads
that, when produced in volume, should lower the cost of the target machine
by 30%. Four patents issued.
- Created method to achieve extended grey level rendering for electrostatic
printers. One patent issued.
- Conceived a new method to modulate a diode laser that practically eliminated
diode laser blowout. Incorporated into Diolite product.
- Conceived of method to improve lifetime of electrostatic print heads whereby
the epoxy surrounding the print styli are laser machined using a excimer
laser and subsequently refilled with an improved epoxy.
- Developed procedures to analyze diode laser mode hopping characteristics
utilizing variable duty cycle pulses.
- Analyzed the characteristics of the newly available CW diode lasers and
identified critical parameters that affected the performance of the laser
scanner. Created detailed specification for the CW diode laser. The specifications
entailed details concerning stable single mode operation of the laser diodes.
- Designed a control circuit to stabilize the amplitude of a galvanometer
scanner to one part in 100,000.
- Designed a PLL optical chopper that was incorporated in a synchronous
detection circuit. The mechanical light chopper was used in industrial application.
After 13 years of operation only one unit failed (due to defective part).
- Analyzed the mechanical/electrical response of a wide format (36"), color
electrostatic printer/plotter and identified the multiple error contributions.
Resulting product is considered the state of the art in high quality, wide
format, color, electrostatic printer/plotters.
- Mechanically redesigned a dye laser to increase wavelength accuracy by
a factor of five.
, Nova Crystals, Inc., Sunnyvale, CA, Optical Design, Technical Staff
1995-2001, Lumisys, Inc., Sunnyvale, CA Optical
1990-1994, Opto-mystic, Sunnyvale, CA. Optical Design,
Diode Laser Products, Instrument Design
1984-1990, Synergy Computer Graphics Corp., Sunnyvale,
CA, Optical Engineering, Scientist.
1983-1984, Diolite Company, Sunnyvale, CA, Turnkey
Diode Laser System
1980-1984, Benson Inc., Sunnyvale, CA, Optical Engineering
1978-1980, Molectron Corp., Sunnyvale, CA, Laser
and Optical Engineering, Manufacturing Engineering
1976-1977, Raytek, Mt. View, CA, Design Engineering
1975-1976, Noctua Inc., Belmont, CA, Optical Engineering
Iowa State University
B.Sc.1973, Math (minor Physics)
University Of Houston
Masters Program EE (1974),
OPTICAL SOCIETY OF NORTHERN CALIFORNIA
Board Member (1983-1986), President (1985-1986)
1. Doggett, D.; Livoni, L.; “Integrating optical collector
with reduced re-illumination of phosphor sheet;” US 6180955; Issued: January
30, 2001; Assignee: Lumisys, Inc.
2. McCaul, B.; Doggett, D.; “Gas spectroscopy;” US 6150661; Issued: November
21, 2000; Assignee: McCaul, Bruce W.
3. McCaul, B.; Doggett, D.; “Gas spectroscopy;” US 5625189; Issued: April
29, 1997; Assignee: McCaul, Bruce W.
4. Doggett, D.; “Laser diode/lens assembly;” US 5615052; Issued: March 25,
1997; Assignee: McCaul, Bruce W.
5. Doggett, D.; McCaul, B.; “Laser diode/lens assembly;” US 5500768; Issued:
March 19, 1996; Assignee: McCaul, Bruce W.
6. McCaul, B.; Doggett, D.; Thorson, E.; “Gas spectroscopy;” US 5491341;
Issued: February 13, 1996; Assignee: McCaul, Bruce W.
7. McCaul, B.; Doggett, D.; Thorson, E.; “Gas spectroscopy;”
US 5448071; Issued: September 5, 1995; Assignee: McCaul, Bruce W.
8. Thummel, H; Doggett, Dave E.; Love, G.; “Laser diode alignment mechanism;”
US 5299375; Issued: April 5, 1994; Assignee: Laser Devices, Inc.
9. Doggett, D.; Dahlquist; B.; Mitchard, G.; ”Electrostatic printhead;” US
5274401; Issued: December 28, 1993; Assignee: Synergy Computer Graphics Corp.
10. Doggett, D.; Wapenski, D.; ”Laser beam profiler having a multimode laser
diode interferometer;” US 5258821; Issued: November 2, 1993; Assignee: Photon,
11. Doggett, D.; "Electrostatic Printer Head Structure and Styli Geometry;"
US 5218382; Issued 6/8/93; Assignee: Assignee: Synergy Computer Graphics Corp.
12. Dahlquist, J.; Doggett, D.; "Method of Making Laminated Electrostatic
Print Head;" US 5148595; Issued 9/22/92; Assignee: Synergy Computer Graphics
13. Dahlquist, J.; Doggett, D,; Mitchard G.; "Electrostatic Printer with
Color Hue or Gray level Controlled by the level and/or duty cycle of voltages
applied to each styli;" US 5062002; Issued 10/29/91; Assignee: Synergy Computer
14. Doggett, D; "Registration System for a Moving Substrate;” US 4808832;
Issued 2/28/89; Assignee: Synergy Computer Graphics Corp.
15. Doggett, D; "System and Method for Activating an Operating Element with
Respect to a Moving Substrate;” US 4731542; Issued 3/15/88; Assignee: Synergy
Computer Graphics Corp.
16. Doggett, D.; "Electrostatic Printing Apparatus;" US 4672400; Issued 6/9/87;
Assignee: Synergy Computer Graphics Corp.
17. Doggett, D; "Plane Linear Grating for Optically Encoding Information;”
US 4528448; Issued 7/9/85; Assignee: Benson, Inc.
18. Doggett, D; "Adjusting Mechanism for use with Diode Lasers;" US 4498737;
Issued 2/12/85; Assignee: Benson, Inc.
19. Doggett, D.; "Holographic Scanner Spinner Wobble Correction System;"
US 4478480; Issued 10/23/84; Assignee: Benson, Inc.
- D. Doggett, S. Barasch, M. Wegener, "Design Trade-offs
for Diode Laser Holographic Scanner"; SPIE Conference, Advances in Laser Scanning
Technology; Vol. 299; August 28, 1981.
- J. Fleischer, D. Doggett "Spectral Profiling with a Single Photo diode";
Lasers And Optronics; April, 1989; p 47-52.
To contact us with questions regarding Opto-mystic's services,
please email us at firstname.lastname@example.org
3580 Haven Ave. #3
Redwood City, CA 94063
Custom Web Pages by Sarah
Last Update: March 12, 2002