Lumiya used a Lightwhip , which was same technology.
"Related" links section on Wookieepedia includes: Crossguard lightsaber · Curved-hilt lightsaber · Darksaber · Dual-phase lightsaber · Double-bladed lightsaber · Lightclub · Lightfoil · Lightwhip · Long-handle lightsaber · Lightsaber pike · Paired lightsabers · Protosaber · Sabercane · Lightsaber shoto / Guard shoto
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The unfinished, but canon, Star Wars: The Clone Wars arc Crystal Crisis on Utapau features a giant green kyber crystal.
Yoda mentions how giant kyber crystals were used in ancient super-weapons: Long ago in forgotten times when the Sith and Jedi fought for control of the galaxy, weapons there were of unimaginable power.
Always at their heart a kyber crystal was.
It's also heavily implied that a similar crystal was later used in the Death Star.
The canon novel Tarkin confirms this.
The designers are also debating the optimum configuration for the Kyber crystal assembly.
Additionally, The First Order Star Destroyer Finalizer , and possibly other First Order Star Destroyers used kyber crystals in their turbolasers.
Her turbolasers are more powerful and faster to recharge than Imperial-era weapons, a product of kyber crystals harvested in the Unknown Regions.
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Yes, there is.
Darksaber.
Currently, it is owned by Darth Maul who won it from Pre Vizsla ( Star Wars: The Clone Wars ).
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The Death Star's super laser was developed with Lightsaber technology, along with an ancient array of weapons of mass destruction.
According to legend, the ancient Sith used massive kyber crystals to create superweapons; during the Clone Wars, the Geonosians revived the superlaser design.
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This is a new addition to Disney Canon, though.
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In Star Wars Battlefront 2 there is a downloadable character that wields lightsaber nunchucks.
Video .
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I know Darth Maul used a lightsaber staff which was basically two lightsabers end to end.  I had thought that lightsaber nunchaku would be amazing, but the fact that you'd rather quickly lose your own hand during a change over would be problematic!!   So are there any other weapons designed using this technology?
Are there any other weapons designed using lightsaber technology?
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<star-wars><weapon>
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The Lightwhip and the Darksaber used the same technology.  Yoda mentions how giant kyber crystals were used in ancient super-weapons. It is  also strongly implied that a similar crystal was later used in the Death Star and in the turbolasers on First Order Star Destroyers. The other weapons used include: Lightwhips, Kyber Crystals, Super Lasers, Weapons of Mass Destruction, Darksabers and Turbolasers
The other weapons used include: Lightwhips, Kyber Crystals, Super Lasers, Weapons of Mass Destruction, Darksabers and Turbolasers