Monday, January 19, 2026
10:30 AM - 11:00 AM PST | Room 208 (Moscone South, Level 2)

Presenter:  Stewart D. McDougall, TRUMPF Photonics, Inc. (United States)
Co-Authored:  Leonardo Electronics US Inc.

Abstract:  It is anticipated that future inertial fusion energy power plants will utilize diode-pumped laser beamlines, and the cost of these beamlines will be significantly impacted by the cost of required semiconductor laser pumps. This presentation describes IFE pump cost analyses based on the first results obtained from a factory model of production that enables quantification of cost reductions due to a variety of approaches. Promising strategies for cost minimization suggested by these analyses will be presented.

Link to Paper 13888-3.

Tuesday, January 20, 2026
10:45 AM - 11:00 AM PST | Room 159 (Moscone South, Upper Mezzanine)

Presenter:  Charlie Turner, Leonardo UK Ltd. (United Kingdom)

Abstract:  Leonardo UK Short Wave InfraRed (SWIR) avalanche photo diode (APD) array technology has been expanded to target the Mid-Wave InfraRed (MWIR) waveband. This paper reports initial technical results and modelling. The full dynamic range of the ROIC has been utilised by assessing the gain-bias characteristics of a 2D FPA. High APD gain and low excess noise with a spectral responsivity covering the 3 – 5 μm range has been achieved in initial trials.

Link to Paper 13908-34.

Tuesday, January 20, 2026
11:10 AM - 11:30 AM PST | Room 101 (Moscone South, Lobby Level)

Presenter:  Clifford E. Headley, Leonardo Electronics US Inc. (United States)

Abstract:  The size and weight of fiber laser sources are important metrics. The package design of this device requires balancing the need to dissipate kilowatt levels of waste heat, while maintaining a light compact package. Additionally, the device must be low cost and have high reliability. In this work the evolution of the size and weight of Leonardo’s ≥ 2.5 kW fiber-coupled amplifier product line is detailed with the design choices that went into it described.

Link to Paper 13875-19.

• 760 nm to 1700 nm
• CW or QCW operation
• Liquid or conductively cooled
• Peak optical power up to 1.5 kW per bar
• Compact, rugged, and modular
• Custom micro-optics for beam shaping and conditioning
• Line narrowing and wavelength locking

• Multiple peak wavelengths available from 800 nm to 1000 nm
• Built with monolithic, fully soldered arrays
• Cooling path isolated from the electrical path
• Non-water alternative cooling fluids
• Small bar-to-bar pitch for increased brightness
• Close-packed 2D arrangement
• Lowest bar-bar pitch available on the market
• Stackable micro-optics plates for beam conditioning and wavelength stabilization

Leonardo’s fiber amplifiers are the core building blocks for fiber laser systems.

• Industrially and military rugged
• Configurations available for spectral or coherent beam combinations
• Low size and weight
• Long operating lifetime
• Integrated electronics and controls
• Easy-to-use interface

• SWIR CW Source
• Homogenized output beam
• Low size and weight
• Direct diode efficiency

• High pulse energy
• Short pulse duration (microseconds)
• High repetition rate
• Homogenized output beam
• Low size and weight
• Direct diode efficiency

• High pulse energy
• Short pulse duration (microseconds)
• High repetition rate
• Homogenized output beam
• Low size and weight
• Direct diode efficiency

• DLATGS is one of the highest-performing commercial pyroelectric materials available today
• Doped with Deuterium to raise Curie temperature to ~ 59ºC
• Doped with L-alanine to prevent permanent depoling after excursions above Curie temperature
• Broad spectral response
• Standard detector supplied in a TO5 package
• Temperature stabilization is available in TO37 and TO66 type packages

• 2048x2048 Format Array
• 4 Top + 4 Bottom Reference Rows
• 15um Pixel Pitch
• Low Glow Design
• Multiple windows. Both readout windows and reset windows are configurable
• 16, 8, and 4 analogue Video Outputs Selectable
• Output butter (or output source follower option)
• Non-destructive, Read-Rest-Read (RRR), interleaved, pixel by pixel and line by line reset
• Low Intrinsic noise
• Low Integration Capacitance
• Low Voltage Operation (3.3V)

Ike Pono is a 1kx1k infrared detector aimed at ultra-low flux astronomical imaging. It provides avalanche gain at these very low photon-flux levels and, consequently, sets a new standard in sensitivity for astronomy. This not only allows for fainter objects to be observed, it allows shorter integration times for the same signal-to-noise thereby maximising the science return on large telescopes. Many future astronomy projects depend on photon-counting level sensitivity, including the imaging of faint objects and spectral lines.

• Multiple independently resettable windows
• Selectable number of outputs up to 32
• Variable avalanche gain
• Voltage clamp function to minimise persistence
• Frame rate up to 200K frames per second with windowing
• Wavelength tuned to the application
• Windowing function to 1x32 pixels

• Photon counting performance at maximum avalanche gain
• Very high frame rate
• Flexible integration and readout modes
• Multiple independently resettable windows (to 1x64)
• Wavelength tuned to application

• Medium waveband (3.7-5μm) 
• 1280 x 1024 format
• 8μm x 8μm pixels
• SXGA format
• Selectable 720-HD format
• Size and Weight reduction from Standard SuperHawk
• Easy SXGA upgrade from 16μm sensors
• Easy HD upgrade from 15μm SD formats
• Negligible pixel blur
• >110K Operation