This solicitation closed on June 3, 2026
View current Department of Defense opportunities →High-power, Long Coherence Length Blue Laser
AI Overview
This SBIR solicitation seeks development of a high-power blue laser (425-475 nm) with extended coherence length and high pulse rates for improved data storage, imaging, and underwater/free-space communication applications. The laser must deliver 10W continuous output with 2000-day operational reliability.
This summary is AI-generated from the official solicitation.
Key Details
Official Description
In recent years, blue laser diode technology has enabled improved data storage, enhanced fluorescence imaging, metal processing, and other applications [Ref 1]. Lasers in this wavelength band also fall within the ‘optical window’ of water and will experience less attenuation than other wavelength bands [Ref 2]. The wavelength band will also experience less diffraction compared to other communication wavelengths [Ref 3]. This SBIR topic seeks to develop a blue laser capable of high pulse repetiti...
Change History
High-power, Long Coherence Length Blue Laser
Opportunity DON26BZ01-NV038 no longer available
High-power, Long Coherence Length Blue Laser
**Summary of Q&A Changes:** One new answer added to Q1: The program explicitly clarified it is seeking a **single wavelength laser**, not a mode-locked laser with multiple narrow wavelength modes. This directly addresses a previous ambiguity about acceptable laser types. All other Q&As (Q2-Q7) remain unchanged.
High-power, Long Coherence Length Blue Laser
Added 1 new Q&A (Q1) clarifying that the program seeks a single-mode laser (one wavelength) rather than a mode-locked laser with multiple narrow wavelengths. Duplicate questions (Q5 and Q7 are identical) were consolidated into the updated version.
High-power, Long Coherence Length Blue Laser
**Updated Q&A Summary:** Added new Q1 with answers clarifying pulse duration (≤5ns target, non-evaluative) and duty cycle relevance to 2000-day reliability requirement. All other Q&As (Q2-Q6) remain unchanged.
High-power, Long Coherence Length Blue Laser
Status changed from Pre-Release to Open
High-power, Long Coherence Length Blue Laser
**Summary of Q&A Changes:** Added answer to Q2 clarifying that 10 m coherence length is defined as "the propagation distance in free space over which the laser light maintains a consistent phase relationship." Also added guidance that proposers should not expect pre-release commentary on proposed solutions; if your approach meets specifications, propose it.
High-power, Long Coherence Length Blue Laser
**Key Changes to Q&A:** 1. **New Q1** added asking for minimum/maximum pulse duration and duty cycle specifications (previously unanswered). 2. **Q3 Answer Updated**: Added clarification that SWaP assessment is required in final report (not a target metric), and wavelength requirement changed from "any single frequency suffices" to "threshold of single wavelength within 425-475 nm band, objective of full band tuning." 3. **Q5 Answer Added**: Newly provided answer clarifying that 10 m coherence length implies narrow linewidth (~10 MHz requirement), confirming the topic prioritizes long coherence length/narrow linewidth laser performance. 4. **Duplicate Q&As Removed**: Previous Q2, Q3, Q4 consolidated; Q5 and Q6 restructured with updated answers.
High-power, Long Coherence Length Blue Laser
**Q&A Changes Summary:** Two new questions added: - Q1: Clarifies 10 m coherence length definition and asks if frequency doubling is acceptable for reaching the 425-475 nm spectral range - Q4: Reiterates SWaP expectations and asks whether 10 m coherence implies ~10 MHz linewidth Previous Q2, Q3, Q4 renumbered to Q2, Q3, Q5. No answer content changed—all responses remain identical to previous versions.
High-power, Long Coherence Length Blue Laser
Added 2 new Q&As: Q1 clarifies CW vs. pulsed laser requirement and requests SWaP target metrics and wavelength tuning specifications. Q3 addresses SWaP expectations and coherence length definition (10 m specification). Previous answers remain unchanged.
High-power, Long Coherence Length Blue Laser
No substantive changes detected. Q2 appears to be a duplicate of Q1 with identical answer (A2 = A1). Both address laser output specifications (pulsed, >100 MHz, 10W average), environmental conditions (benign), wavelength (425-475 nm), and beam quality requirements.
High-power, Long Coherence Length Blue Laser
Q&A section updated
High-power, Long Coherence Length Blue Laser
Content updated: phase_1_description
High-power, Long Coherence Length Blue Laser
Close Date changed from 2026-04-22 to 2026-06-03
High-power, Long Coherence Length Blue Laser
Open Date changed from 2026-03-25 to 2026-05-06
High-power, Long Coherence Length Blue Laser
Status changed from Removed to Pre-Release
High-power, Long Coherence Length Blue Laser
Opportunity DON26BZ01-NV038 no longer available
High-power, Long Coherence Length Blue Laser
New opportunity: High-power, Long Coherence Length Blue Laser
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