[TechEditor] CCSDS 141.0-B-2

[Stepanova, Natalya (GSFC-580.0)[ASRC FEDERAL SYSTEM SOLUTIONS]]

Dear Brian,
The attached file (CCSDS 141x0b2.pdf) is an updated version of 141.0-B-2, Non-Coherent Optical Communications Physical Layer (Blue Book, Issue 2, March 2026). It should replace the current file (141x0b1).
You can discard the old file for Optical Communications Physical Layer (141.0-B-1).
Release summary information for the corrigendum is below.

RELEASE SUMMARY INFORMATION:

Document:                      CCSDS 141.0-B-2
Title:                                     Non-Coherent Optical Communications Physical Layer
Document Type:          Recommended Standard
Document Color:        Blue
Issue:                                  2
Issue Date:                      March 2026
Control Number:         {Control Number}
File Name:                       141x0b2.pdf
File Size:                            938 KB
Responsible Area:      SLS
Responsible WG:        Optical Communications

CESG poll CESG-P-2024-11-003: 12/13/2024
CMC approval:  Fall 2025 CMC Meeting

This document supersedes:

– CCSDS 141.0-B-1, Optical Communications Physical Layer (Blue Book, Issue 1, August 2019), which should be removed from Active Publications.
A cover-sheeted version for inclusion in the Historical collection will be supplied shortly.

Document Description:

The CCSDS 141.0-B-2 Recommended Standard defines the physical layer specifications for non-coherent optical communications in space data systems. It details essential technical parameters for optical beacons and optional data transmission, including center frequencies, laser linewidths, signal emissions, and modulation schemes. This document serves as a standardized baseline to ensure reliable performance and interoperability across space-based optical communication networks.

Sincerely,
[signature_1975811206]

Natalya Stepanova
Technical Writer
Code 582
Contractor, ASRC Federal
NASA Goddard Space Flight Center
M: 361.945.5515
natalya.stepanova at nasa.gov<mailto:natalya.stepanova at nasa.gov>
talyana at gmail.com

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