Some of the other lightweight tent vendors (Gossamer Gear, Z Packs, Six Moon Designs)) sell carbon fiber trekking poles, generally the same length but lighter weight. They won't be as strong as trekking poles, though, and are no stronger than the aluminum poles. I know that the SMD pole for the Lunar Solo bent quite a bit under tension.
I know that when not using trekking poles, Henry Shires recommends 2 poles for his Squall 2 and Rainshadow 2. These tents are both quite stable with 2 of the aluminum tent poles, and it's a lot easier to get in and out the door. Of course, not all tents requiring trekking poles have the two-pole option.
For poles similar to trekking poles, the Gossamer Gear Lightrek trekking poles (without straps or baskets) would probably be the lightest carbon fiber poles that would have the same strength as a trekking pole. They definitely won't be cheap, though!
Also note that Tarptent sells a number of tents which don't require trekking poles.
Actually, once I tried trekking poles, I would never, ever go hiking without them. You might want to try an inexpensive pair of trekking poles (even a pair of used ski poles the right length) for a while before giving up on the idea!