But II-VI stock falls by one-fifth as market questions price of deal valuing Finisar at substantial premium.

Optical networking equipment and photonic integrated circuit manufacturer sheds one-third of its market valuation as investors take fright.

Trade war takes the edge off record-breaking fiscal year, with a 10% dip in sales now pencilled in for 2019.

Fiber laser firm reports 'aggressive' price competition in China; says will move beyond 10 kW in 2019.

Stock leaps 20% as company reports negligible impact from China tariffs, broad-based demand for its photonic components and sub-systems, and an acquisition related to laser weapons development.

Stemmer's record annual revenue up 14% to over €100 million; Cognex has second-best quarter but warns China market is cooling.

Laser micromachining systems firm seen as highly complementary addition to MKS' existing photonics portfolio, including Spectra-Physics laser division.

Fiber laser firm sees opportunities to cement market-leading position amid current market downturn.

Silicon Valley-based Innovusion wins Chinese venture backing to target market for autonomous vehicles with laser sensors.

Spectra-Physics performing well amid generally weaker trading outlook.

Transaction for medical imaging technology assets is expected to be completed by the end of 2018.

Deal, which doubles Visser's metal 3D capacity, comprises 3 EOS M 400-4 systems and 2 of the new EOS M 300-4 systems.