Designing Physical Topologies for Wavelength-Routed All-Optical Networks. - Dag Roar Hjelme; S. E. Andersen (ONDM, 1998)

Toward wide-scale all-optical transparent networking: the ACTS optical pan-European network (OPEN) project. - Michel W. Chbat; Emmanuel Grard; Luc Berthelon; Amaury Jourdan; Philippe A. Perrier; Alain Leclert; B. Landousies; A. Ramdane; Noel Parnis; Edwin V. Jones; Emmanuel Limal; Henrik N. Poulsen; et al. (IEEE J. Sel. Areas Commun., 1998)

Study on the Implementation of Optical Transparent Transport Networks in the European Environment - Results of the Research Project COST 239. - Peter Batchelor; Benedetto Daino; Peter Heinzmann; Dag Roar Hjelme; Robert Inkret; Hubert A. Jäger; Michel Joindot; Anton Kuchar; Emile Le Coquil; Peter Leuthold; Giancarlo de Marchis; Francesco Matera; et al. (Photonic Netw. Commun., 2000)

A packet-switched hybrid optical network with service guarantees - Steinar Bjornstad; Dag Roar Hjelme; Norvald Stol (IEEE J. Sel. Areas Commun., 2006)

Quantum cryptography - Dag Roar Hjelme; Lars Lydersen; Vadim Makarov (CoRR, 2011)

Dual parameter fiber optic sensor combining a Fabry-Perot and a Mach-Zehnder interferometer. - Krister Hammarling; Magnus Engholm; Harald Ian Muri; Markus Wahl; Dag Roar Hjelme (IEEE SENSORS, 2017)

LSPR Coupling and Distribution of Interparticle Distances between Nanoparticles in Hydrogel on Optical Fiber End Face. - Harald Ian Muri; Dag Roar Hjelme (Sensors, 2017)

A Sensory Substitution Device Inspired by the Human Visual System. - Dominik Osinski; Dag Roar Hjelme (HSI, 2018)

LSPR and Interferometric Sensor Modalities Combined Using a Double-Clad Optical Fiber. - Harald Ian Muri; Andon Bano; Dag Roar Hjelme (Sensors, 2018)

Infrared Spectroscopy with a Fiber-Coupled Quantum Cascade Laser for Attenuated Total Reflection Measurements Towards Biomedical Applications. - Ine L. Jernelv; Karina Strøm; Dag Roar Hjelme; Astrid Aksnes (Sensors, 2019)

Addressing Challenges in Fabricating Reflection-Based Fiber Optic Interferometers. - Markus Solberg Wahl; Øivind Wilhelmsen; Dag Roar Hjelme (Sensors, 2019)

Convolutional neural networks for classification and regression analysis of one-dimensional spectral data. - Ine L. Jernelv; Dag Roar Hjelme; Yuji Matsuura; Astrid Aksnes (CoRR, 2020)

Micro-Lensed Negative-Curvature Fibre Probe for Raman Spectroscopy. - Karolina Milenko; Stephanos Yerolatsitis; Astrid Aksnes; Dag Roar Hjelme; James M. Stone (Sensors, 2021)

Colorophone 2.0: A Wearable Color Sonification Device Generating Live Stereo-Soundscapes - Design, Implementation, and Usability Audit. - Dominik Osinski; Marta Lukowska; Dag Roar Hjelme; Michal Wierzchon (Sensors, 2021)

Observation of Local Small Magnitude Earthquakes using State Of Polarization Monitoring in a 250km Passive Arctic Submarine Communication Cable. - Kristina Shizuka Yamase Skarvang; Steinar Bjørnstad; Robin André Rørstadbotnen; Kurosh Bozorgebrahimi; Dag Roar Hjelme (OFC, 2023)

First Impact Movement Characterization of Shallow Buried Live Subsea-Cable. - Steinar Bjørnstad; Kristina Shizuka Yamase Skarvang; Dag Roar Hjelme; Asbjørn Tunheim; Frode Fjermestad; Eivind Østerli (OFC, 2024)

Local Wind Impact Sensing using State of Polarization Measurement on a Live Short-Haul Aerial Fibre Cable. - Kristina Shizuka Yamase Skarvang; Steinar Bjørnstad; Erik Sæthre; Dag Roar Hjelme (OFC, 2024)

Localising State-of-Polarisation Perturbation on a Repeatered Link Using Wavelength Dispersion Delay Walk-Off. - Kristina Skarvang Vaskinn; Daniel J. Elson; Shohei Beppu; Daiki Soma; Steinar Bjørnstad; Dag Roar Hjelme; Yuta Wakayama (OFC, 2025)